Falcon & The Winter Soldier: 10 Characters Who MUST Appear
1. Steve Rogers
The last we saw of Steve Rogers, he had happily lived the life Tony had always said he should, handing off the shield to Sam and officially passing the baton to one of his closest friends. For all intents and purposes, Steve's arc has come to a satisfying end where the character can continue to live out the remaining years of his retirement at peace.
That said, Steve as a character is simply too popular for him to never be seen again until - let's say - he dies off screen of old age similar to Peggy's passing in Civil War. He's very much still alive and well, and it's hard to imagine that he would up and stop being a part of Sam and Bucky's lives going forward, even if just as the occasional confidante.
By having Steve make an appearance in the series, we could learn more about the life he got to live, while giving one of his great pep talks to his best friends as they work to honor his legacy at a time when they need to hear it the most. However brief said appearance may be, it would be a great way for the character to still have a place in the MCU even if his time as an Avenger is over.