7. Planet Hulk
One of the more ambitious and risky projects will be another solo Hulk film, after Ang Lee's Hulk was divisive among fans and critics, and Edward Norton screwed up his own chances of starring in The Avengers by being a dictatorial jackass on set. However, from rumours that have surfaced this morning, it appears that a Hulk solo film, if this is true, will follow the Planet Hulk comic book arc. After Hulk is sent into space at the end of The Avengers 2, he awakens on an alien planet, whereby he is forced into gladiatorial combat to prove his worth, which inexorably he does. The aliens come to worship him due to his strength and size, and he ends up setting the alien race free from their bondage, while being revered as a God-like saviour. Hulk would begin his return to Earth at the end of the film, leading into the Hulk-centric narrative of The Avengers 3.