I'm not even a comic book guy and I would totally be down with seeing them take Batman in a much different direction like Batman Beyond after Nolan's done.
Batman Beyond adaptation, let's go crazy on this bitch.
Hulk making a guest appearance in Iron Man 3 might be nice since he gets along so well with Stark, but if they do that they better keep it a secret and not put it in the trailers.
Actually I'd quite like it if Hulk was a mainstay character in the Iron Man series instead of getting his own series.