Avengers Endgame trailer: Marvel fans are sure Steve RogersCaptain America is going to di@. They’ve even discovered clues. The trailer for the much-awaited Avengers Infinity War 2 a.k.a. Avengers 4 is here along with an official title. But as per reports Avengers 4 is shaping up to be the longest film of the Marvel Cinematic Universe. Know more in this video.