Re: How to avoid rehashing elements from the Nolan Trilogy
If they do want to restructure specific minutia of Batman's origin (for story purposes and otherwise), I wouldn't want them to simply redo the origin again, but pepper those deviations in the form of flashbacks throughout the next series of films if they can.
Alan Moore on comics:
They've lost a lot of their original innocence, and they can't get that back. And, they're stuck, it seems, in this kind of depressive ghetto of grimness and psychosis. I'm not too proud of being the author of that regrettable trend.