The Todoroki family is really in a tough spot currently, because I don't really see an straightforward way to satisfy all the different characters' arcs. But for me, it should have the following components:

Touya lives. This is a big one. With Tomura, you could argue that he helped bring down AFO, with Toga you could say that her heart was saved, but where Touya was left off? A death would serve no narrative purpose. Even just with an open ending, there needs to be a hope that he can get better.
Enji delivers on his "I'll watch Touya" promise. He needs to make some kind of sacrifice where he puts his family first over his hero career. What form this will take? Idk.
Shouto and Touya need a moment. That moment of connection where Touya saw Shouto as a child needs to be spoken into existence somehow. I don't expect anything as sweet or idyllic as the Tgchk or Deku-Tenko moments, but I think Shouto deserves an opening from Touya even if it comes as a sarcastic comment about favourite foods. Like something fittingly low-key that gives us a glimpse of how they could eventually down the line build something.
Enji and Rei need to take Shouto off the pedestal and embrace him as a child. Shouto getting the "family hero label" and all the expectations that come with that now needs to stop. All the kids are masterpieces in their own beautiful ways and Shouto should be embraced with the unconditional love he deserves without any pressure of who he needs to be and what he needs to deliver to get it. All the other kids too.
Public fall-out addressed. This is a bit a stress-test on a society level. I think it's a given that the Todoroki family will stand by Touya (in contrast to Toga's parents who quickly disowned her). What will happen with Touya (prison, mental clinic, house arrest, some secret rehab program) is a test to see if anything changed. Also, how the public relates to Shouto who chose to save his villain brother, who is tainted by family scandals is a big question.
In the end, I'm hoping for an open, but somewhat hopeful ending. Rei, Fuyumi and Natsuo living in the new house, Touya getting the help he needs with a rehabilitation path, Enji putting him first and Shouto while obviously will keep his family close in his heart, being freed from the "hero role" and can be free to work on his own path and joining his friends.

I don't mind if he forgives Endeavor even - I feel like that's something he may decide for himself just to be rid of the anger, but it's a difficult balance because the past cannot be forgotten. So I definitely don't want the whiplash of a sudden chummy relationship with Endeavor and Shouto being handled as Endeavor's redemption trophy.

I think also a long-overdue hug from Rei and a reason to make Shouto smile genuinely are the only things I'm hoping from the epilogue.

Hawks was clearly set up for a spiral after the PLF War arc. Imagine, if the story followed through with Endeavor dying, the one who is left standing as the public face of the heroes is Hawks (who by the way was the brain behind the planning of the entire raid. Endeavor was just muscles).

I have no doubt that originally, the HPSC was set to throw Hawks under the bus to make him take the blame for the failed raid and the lives lost. I think also Hawks - having lost his quirk (which I think was clearly the intention originally) and being made a scapegoat was going to end up in Tartarus with a grudge against his handlers.

It would have made way more sense for a quirkless Hawks to be tempted to take a quirk from AFO that could make him fly again than it did Nagant. From then on, the story is pretty much the same - Hawks goes out to capture Deku, Deku fights him. And then either he returns to the "good side" or actually dies during the save attempt - bringing him a tragic ending and a much-need failure for Deku that he could stand up from.

Hori chickening out of this direction really destroyed Hawks as a character. Made him from a really compelling moral gray into another bland optimist, plus chained him to become Endeavor's cheerleader which imho served neither or their characters, nor the previously established much more interesting dynamic they had.

I've been hesitating whether to reply, but here it goes.

1. I'm not hostile to Deku and Bakugou as characters, but I have criticism of how the story handles them as of late. It's not the same. I think their dynamic was interesting until the apology chapter, but there was nothing truly interesting Hori managed to do with them after that.

2. I really really dislike interacting with the arrogant and entitled shipping fandom and have been making a lot of efforts to mute it / avoid it.

3. Btw, MHA has one MC - it's Deku. Then it has a main cast which prominently includes Bakugou, but also includes many other characters. Fans of those characters have also been given legitimate expectations (like the villains being saved, for exampl) and have every right to criticize the story for not delivering on it.

4. I'm mostly laughing at the "greatest heroes" stuff, because it's not about the "set-up", it's about the delivery. I have a really hard time seeing in what way they earned the greatest hero title.

With Deku, even if he failed his fundamental narrative challenge of saving his villain in a meaningful way, I can kind of stretch myself and see how the final arc brought together people whose lives he touched back in the days when he was a passable MC.

Bakugou though? He was just one of a bunch of people who beat AFO. What makes him "greater" than Jirou who destabilized his quirks, than Tokoyami who smashed his helmet, than Endeavor who actually did kill him and forced him on the rewind, than Hawks, Mt Lady, Inasa, Camie, etc.? Everyone in this final arc faced threats they were too weak to face, yet they did it (Sero, Satou coming in to save Deku against AFO). Every single character pushed way past their limits (even if they didn't get the praise).

Even All Might could only come up with "you are greatest because you saved my life" which feels a bit tone-deaf in a chapter where he also says "oh well as long as he wasn't crying anymore, Tomura's life didn't matter that much".

1. So I'm furious, because I actually like Bakugou's character and care deeply about him and wanted him to be greatest in a satisfying way. But to me, his endgame felt seriously lacking. He's a charismatic character that could have inspired many and he's smart so he could have worked great with others. But instead, he had been once again made a damsel, his team was sacrificed for him and he barely acknowledged that and even this chapter says "yeah, he did all these awesome things, we don't really know how because it was all asspull, but isn't he magnificent?"

So I deeply resent that the final arc made Bakugou look like the creator's pet the fandom always accused him of being. Lots of glaze, but actually very little substance. To me at least it wasn't satisfying.

1. As for Shouto - I honestly don't care about All Might anymore. I've always felt so-so about his character, but I was interested in the "deconstruction". Well, the final arc also destroyed any deconstruction his character may have had, basically validating his reign as the Symbol of Peace and arbiter of Greatest Hero gold stars, as well as Most Important Life To Be Saved (tm).
   

Shouto's arc is about validating and affirming his own reasons for existence and I don't need All Might to tell me that how great he is. I think his actions, as well as the hundreds of lives he saved speak loud enough, and it's not like All Might is the one whose word count on this. I do resent shit like Hori offscreening him in Ch 422 only to offscreen him again for Bakugou in 423, but like I guess in the grand scheme of things, we don't really need a scene to know he'll support his friends to his last breath, because that's like a given for his character.

At this point, all I'm hoping for is that he will get also a narrative reward - even if it's just a hug from his mom, and not have this insane writing at the end destroy his character arc.

Well, what did you expect? Deku had to stop the sadness somehow - am I right?

What point would have been with trying to engage Tomura in a discussion of his criticism of society? Of trying to make him see the changes? Of reassuring him that his friends are alive and there are people caring about addressing their complaints?

Did you expect him to use his genius quirk analysis skills to come up with a way to capture him alive?

Nah, you see, if you keep smashing at his soul until it breaks into pieces and the trauma and hatred will just go out. And then conveniently you can help his body be taken over again by paper-evil guy and then you can smash him to pieces.

That way, you don't have to worry about difficult questions like what you do with someone like him who has been groomed and targeted since before birth by the most powerful villain.

Never finding a complex problem that you can't just smash away with punches is the stuff greatest heroes are made of.

So part 2 of the fight is mostly about Toya. It’s about this kid who inherited an iron will and will not be put down by a power that he’s told he can never match. So Toya fights back. He copies Shoto’s Phosphor (but his expression of it is still pure destruction) and he goes to recreate Sekoto peak to force Enji to look at him. He finally makes his father to stop running away and properly look at the tragic monster he created.

And the family that changed rushes in to save him and even if his needs are fulfilled for a single moment (paralleling Toga’s smile), it’s not enough. It’s too little, too late. The family can’t calm down Touya and Touya can’t stop himself because he never learnt how to turn off the fire.

So Shouto is still very much the hero they need to save them, he’s the last piece of the puzzle, he’s the one who can arrive aided by the friends he made and use his power to save everyone.

I read the second fight as the accumulated trauma in the family (fire) vs the power of everyone’s healing (where still the main source is Shoto) represented by ice.

But I think the key turning point here is that Touya doesn’t want to continue fighting anymore. He wants to talk. He wants to pour out his rage and anger, but he doesn’t want to burn the world down anymore. And that’s because both his psychological need of being seen and physical need of turning down the flames are met. It’s a low point, but I think it’s one you can build on.