It has probably been mentioned before, but if Batman does continue to kill in the other films, if he stops suddenly and does not kill Joker or the other rogues, then Ill definitely end up resenting these films.
Yeah that was kinda one problem I had with Batman being fine with casualties or actually attempting to kill threats. Now, they're gonna have to justify why he hasn't tried to murder Joker, because you would think, once he decided "Killing is okay", that would have been his top priority. And maybe he has tried, and we'll see more of that later, but once you make him cross that line, it's hard to justify a confrontation where he doesn't just immediately break The Joker's neck, or any other villain for that matter
Even your beloved Batfleck said Nolan's Batman is the defining Batman, and the realism aspect is so exciting;