It's called DRAMA! only bad storytelling will bring down the marvel cinematic universe and it won't happen with Fiege, Whedon, and Favreau's input. I agree it's too soon for the Planet Hulk plot but alot can happen between now and avengers 3. I mean phase 2 hasn't even started yet. I know at some point marvel/disney will have to go and try to make a deal with Fox to get to use the surfer or galactus at some point.
Originally Posted by Dark Raven
Hulk as the villain in Avengers 3 would be where the Avengers franchise starts going downhill for the 3rd movie. Just because Marvel has had success before with Hulk in the Avengers doesn't mean that they can just do anything they like with the characters and still expect the audience to respond in the same positive way.