According to Avengers co-director Joe Russo, Chris Evans isn't done playing the character of "Captain America." Although he can't confirm or deny that Evans will sign on the dotted line in the future, the actor has given him every indication that he is a committed member of the franchise, even though this Tweet alluding to his departure says otherwise.
The Tweet sent shockwaves around the "Marvel Universe" in the days that followed, forcing Chris Evans to repudiate his position shortly thereafter. Although, if a decision had to be rendered right here, right now, Evans would probably be more inclined to retire his Captain America suit under the premise of an honorable discharge. One way or another, Marvel fans have begun to speculate on his replacement, but I gather most fans prefer the status quo to changing things up.
"I think it was more emotional for him (Chris Evans) than it was for us, mostly cause he’s not done yet," Russo told USA Today. "I don’t want to explain what I mean, but audiences will soon understand." Think about it, Joe Russo is smart to use an indirect line like the press, in handling his courtship of Evans. Check out the entire video interview with USA Today for more insight.