Falcon

The D23 convention made it clear that Captain America won't be all alone in his fight. Instead, he will also be helped by Falcon, at first, and then by the others.

But Falcon's role is much more important than previously believed. He won't just fight alongside Steve Rogers, but he will also be the one to actually find the Winter Soldier. It wasn't so clear in the post-credits scene from Ant-Man, but the D23 expo shed some light on this issue.

But this isn't all "“ who knows what events happened between the time when HYDRA took over SHIELD in Captain America 2 and now? The bond between Captain America and Falcon must have gotten really strong.

Furthermore, since Falcon is an essential part of the New Avengers (in the comics, at least), we can expect to see a lot more of Anthony Mackie in the MCU.

On the next page, speculating about Ant-Man's role in the Civil War!