One MCU fan points out that when Jeremy Renner’s Ronin is spotted in the latest Avengers: Endgame trailer that there is a red light reflecting on his face.
The Russo Brothers could have brought Ultron back for Avengers: Endgame, but did they really tease the villain’s return in the latest trailer?
You can head over to Reddit for more information on the latest Avengers: Endgame theory.
So, perhaps the latest Endgame theory isn’t so far-fetched as it may seem on the surface.