Plus, Marvel wants to make an Avengers movie after Iron Man, Hulk, Captain America, Thor and Ant Man's films are out. (The writers strike will delay this a bit, I'm sure.) Plus, Marvel wants to use all the actors from the individual movies, which I'll bet all stars signed contracts for sequels and the Avengers movie.
Unlike Warner Bros. and DC's Justice League movie, which has been the subject of controversy by re-casting Superman and Batman. With Justice League delayed, hopefully until someone gives Brandon Routh and Christian Bale the money and time to star in it.
In my opinion, this is great news on all fronts; Marvel's Avengers movie could really kick serious butt. Though Justice League may still come out first.
Source: MTV Movies Blog