Considering how displeased Edward Norton was with the final version of this summer's The Incredible Hulk - the actor refused to do any publicity for it after disagreeing with the edits made - it should come as no surpirse that he doesn't know anything about future installments in this franchise.
“The minds of Marvel are sometimes opaque,” Norton told MTV News. “I won’t say [they're] obtuse, but I don’t have any idea what they want to do.”
Don't push your luck, The Incredible Hulk producers. A sequel would be a waste.