Warning: This article contains spoilers for Avengers: Endgame!
Avengers: Endgame may not be the first MCU movie to deal with the concept of time travel, but it certainly makes full use of that popular sci-fi trope. And as Marty McFly will tell you, the problem with time travel is that it’s hard to put the genie back in the bottle. Now that the Avengers have bent the MCU timeline to their will, they may be dealing with the ramifications and unintended consequences for a long time to come.
With that in mind, we can’t help but wonder if this is the first step toward introducing one of the biggest Avengers villains of them all. Could Kang the Conqueror be joining the MCU? Here’s why we think Endgame could be setting up Kang for a major role in Phase 4 and beyond.
Source: IGN.com How Avengers: Endgame Subtly Sets Up a New Villain