Since everyone is, rightfully, obsessed with movie skins, I'd love it if one of these studios decided to take it a step further and make up for all of the ****** tie-ins, by making a sort of, I don't know "Legends of the Dark Knight" game, where it's basically just one, big celebration of Batman. Could you imagine playing as the '89 Batman, with an actual Keaton likeness, and chasing Napier and his goons through Axis Chemicals in a Predator Encounter? A '66 battle full of onomatopoeia thought-bubbles and West and Ward voice-overs?
Hell, what if you could actually play through the opening credits of The Animated Series in an authentic recreation of Bruce Timm's Gotham? Chase down the bank robbers in the TAS Batmobile, against those red skies and looming skylines, and, ultimately, confront them on that rooftop, and that's just some of the movie and TV stuff; you still have the Nolan films, potentially, Snyder's stuff, and a whole 75+ year history in comics that you could look through for inspiration.