Undeveloped Marvel Cinematic Universe projects

The Incredible Hulk 2
A sequel to The Incredible Hulk has been in development since the film's release in 2008. Kevin Feige said that Hulk would return after The Avengers. Tim Roth is contracted for three more films. Leterrier said that was open to directing a sequel.

Warriors Three
In 2011, Kevin Feige says that there could be a Thor spin-off of The Warriors Three.

The Winter Soldier
Captain America: The First Avenger director Joe Johnston has expressed interest in doing a Bucky solo film, quoted as saying "I told the Marvel guys that there is a character that I’m really interested in called ‘The Winter Soldier’ and that if, ‘you guys decide to make that picture I would definitely be interested.’ […] I just think that it would be interesting to take a character that was in ‘Captain America’ and build a story around him. Plus, I like Sebastian Stan a lot (who played Bucky) I think he would be an interesting actor to build another feature around." While no official word has been given, Johnston said that the film most likely won't happen until after Captain America 2, and has expressed interest in working with Scarlett Johansson and crossing over with her character of the Black Widow. In the comics, Bucky and Black Widow have a romantic history dating back to the Cold War, and though Black Widow appeared in Iron Man 2, and the Cold War conflict was alluded to with Whiplash's treacherous father Anton Vanko, they did not develop any relationship between the Black Widow and the Soviets, leaving the possibility for it to be expanded, whether in a Winter Soldier or a Black Widow Though the film is only in the planning stages and has yet to start development, Sebastian Stan is signed on to reprise his role in a total of 6 Marvel films.