5. Black Panther
Black Panther (duh)
After Credits Scene: Iron Man recruiting him for Civil War! (Since he might be the Spider Man of a cinematic Civil War, he should switch to Cap's side.)
6. Captain Marvel
Captain Marvel (duh)
The Kree (duh)
The original Captain Marvel or Mar-Vell (probably)
Agents of S.H.I.E.L.D tie in (a fan can dream right?)
After Credits Scene: Iron Man recruiting her to his team for The Civil War!
Avengers: Infinity War Pt I and II + a bonus coming soon!