There have been a lot of people asking about the future of the Marvel Cinematic Universe after the next Avengers movies. It's an answer we're probably not going to get until after the credits roll in Avengers 4, but Captain America star Chris Evans recently said in a Telegraph interview why he decided to extend his contract. Evans was supposed to be done with Marvel movies after Avengers: Infinity War but extended his contract to include Avengers 4 as well.
"I had six films in my Marvel contract, so I could have said after the third Avengers I was done, but they wanted to make the third and fourth Avengers films as a two-parter. They said they had so many other characters to fit in – Guardians of the Galaxy, Black Panther, Captain Marvel, Doctor Strange, Ant Man – and couldn't get them all into one movie. [I agreed] because it made sense. It's going to wrap everything up."
So, story purposes, but the wording of the interview makes it sound like Evans is merely sticking around for the team-up movies and not any solo Captain America movies. Evans has said in the past that he's looking forward to directing more and he wants to stick around, so no one is really sure what Captain America is going to look like as a character post-Avengers 4. Anthony Mackie or Sebastian Stan could take up the mantle but we don't really know right now.
Evans, who was reluctant to take on the role of Captain America at all, has really come around in recent years. He seems to appreciate and love how much he is effecting the lives of the kids that look up to him. That feeling might be enough to keep him around for guest spots in a post Avengers 4 world.
Avengers: Infinity War will be directed by Anthony and Joe Russo and stars Robert Downey Jr., Josh Brolin, Mark Ruffalo, Tom Hiddleston, Chris Evans, Chris Hemsworth, Jeremy Renner, Chris Pratt, Elizabeth Olsen, Sebastian Stan, Benedict Cumberbatch, Paul Bettany, Samuel L. Jackson, Cobie Smulders, Benedict Wong, Zoe Saldana, Karen Gillan, Vin Diesel, Dave Bautista, Pom Klementieff, Scarlett Johansson, Tom Holland,, and Anthony Mackie. It will be released on May 4, 2018.