So if they're bound and determined to make this fucking thing, I'm pretty sure they have to
(have to!)
realize by now that there are two key components they need in place:
1) This needs to be set in Japan, and star Japanese/Japanese-American actors
2) This needs to be a trilogy.
If they can't figure out a way to do those two things, they need to not fucking do it.
I think a modern American-set adaptation of Akira makes plenty of sense. Like a lot of sci-fi Japanese stories of the time, its themes drew from the post-war economic resurgence that don't make quite as much sense for direct adaptation 2017. Now, apply some of those themes (societal pressures, political corruption, alienation, military, rebellion against authority/control, identities in flux) to a post-Trump, post-Apocalyptic America and you're cooking with gas.
Of course, this will only work if they go for a primarily minority cast. Maybe draw inspiration from The Warriors, or even West Side Story with a Peurto Rican biker gang in Neo-New York or Mega-Manhattan.