Avengers: Endgame showed the fans that Tony Stark died the death of a hero, but Captain America’s ending had been based on a lot of huge assumptions. What he had done while returning these six Infinity Stones could inspire a whole film. Maybe, there may be an original Captain America story left to tell although Steve has passed on this torch to Sam Wilson.
Joe Russo had said something to EW.com which surely hints at a future Captain America film:
“If Cap were to go back into the past and live there, he would create a branched reality. The question then becomes, how is he back in this reality to give the shield away? Interesting question, right? Maybe there’s a story there. There’s a lot of layers built into this movie, and we spent three years thinking through it, so it’s fun to talk about it and hopefully fill in holes for people, so they understand what we’re thinking. Especially when he says goodbye, he says, ‘I’ll miss you.’ Clearly, he knows something. Sam doesn’t know something.”
Sebastian Stan had recently gone on to answer a lot of questions of the fans for at a comic convention. He had been asked is Steve has a chance to return:
“You see when we were filming the movie; I didn’t know I was going to be apparently filming it for the last time with them. I think it’s difficult to…I don’t know if it’s goodbye to Steve yet. I don’t know, you know? I wonder about that.”
Sebastian Stan had said that there is a lot more coming our way:
“I think it’s time for Bucky to go out there and have an identity outside of the circumstances that we’ve met him through. So, I don’t know; he might do all kinds of things. He might even go on a date. I don’t know. Scary world out there, you know? Apps, things like that. I don’t know what he’s gonna do. I can’t see him on an iPhone…I think it’s gonna be a lot of dealing with Anthony’s character and Anthony himself, which is always another character. I have a blast working with Anthony. It’s very funny half the time. It’s just gonna be a lot of that move your seat up thing; I’m gonna tell him that if we’re gonna be in the car, I’m gonna be in the passenger’s seat and he’s gonna be in the back, or I should be in the driver’s seat.”