He doesn't have much of a public presence, so it's a bit hard to judge. I mean, it looks like he still does some PR/web work for Clock Up, so I'd like to believe he's in a good enough shape, at least.

Also, I don't think there is any proof to confirm that Akutsu and Amemiya are the same person, but I can see it as a possibility. They share a similar vision and work with a similar team (Hamashima, Norizane, Kurashiki, Izumi Ban'ya—all these people mostly worked with them in 2010s)