CiG
Approximately Infinite Universe
Problem is usually getting the execs to greenlight that kind of thing. Movies like Deadpool, Logan and Joker surely made it a bit easier to pitch darker/more fucked up/more adult comic films but just reading what happened behind the scenes on this one, not by all that much. The new director did manage to exclude all DCU crossover cameos in this new Batman (so Aquaman won't be randomly showing up or anything like that).