A year ago today on Wednesday, November 29, 2017, the world was forever changed when the first Avengers: Infinity War trailer was released online. That trailer dropped and quickly shot up in YouTube views, not only becoming one of the most watched trailers in the history of the Internet, but also pop-culture fixation for months afterwards. Now, on the one-year anniversary of the Avengers: Infinity War trailer release, Marvel fans are keeping vigilant watch on the Internet and all official Marvel Cinematic Universe sites and soical media profiles, hoping that the Avengers 4 trailer will be arriving.