Avengers 5: Predicting Which Marvel Character Will Be Next To Die
5. Scarlet Witch
The WandaVision TV series coming to Disney+ will explore the Scarlet Witch's mental breakdown as she loses control of her surroundings and creates a new reality where she and The Vision are raising twins in a sitcom setting. Wanda will then appear in Doctor Strange in the Multiverse of Madness, presumably because the Sorcerer Supreme is going to try to help her.
Left unchecked, the Scarlet Witch would tear the universe apart, and the Doctor Strange sequel could very easily lead into an Avengers 5 where the former Avenger has, in fact, become an out of control villain looking to tear Earth's Mightiest Heroes apart after they cost her both Quicksilver and Vision.
If that happens - and she kills heroes like War Machine and Ant-Man in the process - then redemption could be out of the question for Wanda, and her death might end up being inevitable. Whether another hero is forced to put her down or Scarlet Witch's powers overcome her, Avengers 5 seems a very likely place for the character's story to reach its end.