It's like Edward Norton thinks everyone in the world has such a short attention span that they don't remember a movie that was made like 4 years ago.
The point is, Marvel wants to forget that movie was made, and replace that memory with this one, which should be slightly better.
Hulk is a potentially good character and has a dozen great story points to use. Letting Hulk's live action future end with Ang Lee's pile of shit would be a waste of creativity and money.
This movie will be good if not for the fact that it looks much more believable CG-wise, but also because it won't be in that retarded comicbook-screen-transition form. Ang Lee appears to be a pretty smart guy, he should've known that Hulk would be a bad movie.
Also I think Edward Norton will make a great Banner. He does lay on the thick Norton-esque dialogue, but he fits the profile of a nerdy scientist much better imho, that the mini-hulk Eric Bana did.