Good question!! My personal interp of canon is mostly based on this video: https://youtu.be/eNR8MKs2wI8?si=dIDz5UC11liNs1iC

(I haven't watched the full video but i do like their coa 3 section)

To summarise: Kevin dives after Tracy during the netherwalker battle and the pair wander the art gallery trying to find an exit- their final fate ambigious

If we go to more loosely canon and fanfic territory- I'm a big fan of Tracy escapes alone. I have a fan game idea i wanna try learning rpg maker for based around the aftermath of coa3 where Tracy is in hiding and trying to find a way to save Kevin. However this is more "fanon/what if"

Bonus i love corrupted Whiplash taking puppeteers corruption- even if that is up to the theoriser

Aaaaa wish netease would do fancy trailors for older coas... I'm hoping since coa3 is such a fan fave they'll revisit it.... At the rate idv is dropping character's they're gonna eventually run out of survivors for coa skins.... I hope they do repeats and continuations. I need answers on Coa3....and a servais skin >-> miss my dad....