Avengers 4: 10 Twists Nobody Will See Coming
6. Sam Wilson Becomes The New Captain America
It's a safe bet that there will be a Captain America in the Marvel Cinematic Universe after Avengers 4, though it won't necessarily be Steve Rogers. Several characters have inherited the shield in the comics, two of whom were dusted by Thanos.
Both Sam Wilson and Bucky Barnes have taken on the Cap mantle in the source material, and there's a good chance that will happen in the MCU. The events of Infinity War are likely to be undone to some extent in Avengers 4, meaning this pair and the other disintegrated characters are unlikely to stay dead in the long run.
Bucky is odds-on to become the next Captain America. After Rogers, he's the best-known character to take on this identity, and this is true to such an extent that many of the fans haven't even considered the possibility of Wilson taking the shield.
In the movies, however, Bucky has become known as White Wolf, who is a completely separate character in the comics. It would be one hell of a twist if the former Winter Soldier retains this identity post-ressurection and Falcon becomes the new Cap.