The story is my #1 concern about Batman 2. Begins had it a bit easier, in a way, since it was all character exposition and building up the backstory to why Batman does what he does. From his childhood to his adolescence to his adventures around the world, to his training, to him coming back to Gotham to get his tools and save the city.
What could the next one possibly have, that even comes close to comparing? His training is done, so that's not interesting anymore. He's got most of his basic toys, and I assume we'll catch up with him after the house has been re-built and the batcave has been improved....so where does that leave us, as far as Bruce's development goes?
Going into his dual identity is a good start. But I'm beginning to think that, strangely enough, we're going to have to shift the focus of the narrative abit more to a bigger story than Bruce Wayne/Batman. What Batman 2 is going to need, above all else, is a serious detective crime story. We're going to need some more Gordon, we're going to need some serious Harvey Dent time, and we're going to need to see Batman doing more than just kicking ass and collecting new gadgets.
I want it to feel like a layered, textured crime story where we as the audience are tracking down the Joker with Batman, going from crime scene to crime scene, investigating and analyzing clues right alongside him, putting it all together and feeling Bruce fight his descent into madness as he gets nearly consumed with his obsession of getting this killer that is MOCKING him the entire time.
I want to feel that frustration swell up to a fever pitch and basically beg Batman to kick Joker's @ss when the time comes. It should be framed in such a way that Batman/Gordon/Dent have been on a roll since the last film, making some serious headway in Gotham when suddenly Joker hits the scene and throws a monkey wrench in their system. I want to see Batman/Bruce Wayne lose his balance a little bit, as cliche' as that is---I think Nolan and Goyer could make it work.
Anyway, enough rambling. Wanted to just throw that out there.