Nate Moore on how 'CAPTAIN AMERICA: BRAVE NEW WORLD' ties into 'AVENGERS: DOOMSDAY' "It's no secret we're starting to build to Avengers 5 and I think there's never been an Avengers movie where there's not a Captain America at the center of it, so this is about Sam Wilson showing the world that he is deserving of the mantle and why he's both Captain America and not Steve Rogers [...] And I think he's going to take the skills from this film and figure out how he can be helpful as the Avengers fight a new threat"