Marvel is doing everything previously thought impossible with Avengers: Doomsday. First, it brought back the Russo brothers and Robert Downey, Jr. Then, it brought back Steve Rogers and Thor. Check out the teaser below:The teaser shows Shuri, the Black Panther, and M’Baku, King of Wakanda, walking along a vast desert. (Yancy Street, by the way, is a very iconic location in Marvel comics.) Ben Grimm introduces himself in the fourth teaser for Avengers: Doomsday.