Even if it is the same "wall of sound" approach employed by Hans Zimmer, our previous composer of the bat Franchise, I would love to see Trent Reznor and Atticus Ross take a stab at it. Who I think produced a far higher quality of work for the last two Fincher films working within similar approaches Hans Zimmer utilized in Inception and most of the Dark Knight Rises.
Can you imagine something like this in a Batman movie? How could you not?
Or we can go an understandably opposite direction of full on classical orchestra and possibly have someone like John Ottoman as our next Bat composer.