Starting off as a villain in 2015's Avengers: Age of Ultron, Wanda's character arc was very eventful throughout the Infinity Saga. First teamed up with Captain America at the events of Captain America: Civil War and went on to defend Earth from Thanos in Avengers: Infinity War and Endgame, in which she killed the love of her life, Vision, in an attempt to save the mind stone from the Mad Titan.
However, Wanda reunited with Vision in a very unsettling way at the events of Disney+'s WandaVision series. The series follows Wanda creating her own reality in which Vision still exists, and they both have twins, Billy and Tommy. As much as this is a happy ending for Wanda, the conclusion of the series reveals Wanda accepting her reality, and saying goodbye to Vision one last time. Surprisingly, a post-credits scene reveals Wanda reading a Darkhold, a mystical book consisting of Dark Magic spells, but corrupts anyone who reads it.
Doctor Strange in the Multiverse of Madness offers a surprising twist with the fan-beloved Wanda as she extremely transforms into her comics counterpart, the ruthless Scarlet Witch. Although it was already teased with last year's WandaVision, fans are still in shock after witnessing the Scarlet Witch's killing spree in the film.
As the film progresses, it was revealed that the Scarlet Witch is trying to hunt down America Chavez due to her ability to travel across different universes and she wants to use this ability to get to her kids, Billy and Tommy, in another universe.
Wanda actually succeeded twice, but fans are baffled about Vision's absence in this universe (Earth 838) and why Wanda never looked for him.
Why Vision Doesn't Exist in Earth 838?
Earth 838 is tremendously different from the original MCU universe, Earth 616. Aside from Earth 838 obviously being more advanced, it was later on revealed that this alternate universe also has alternate realities, such as in this universe, Supreme Strange sacrificed himself instead of Iron Man. And Ultron Bots successfully made it into this universe, which is why Vision never existed at all.
Earth 616, or the original MCU universe that viewers knew, Vision was developed to stop Ultron from destroying the world. Knowing that Vision didn't exist on Earth 838 completely explains why the Scarlet Witch never bothered to look for Vision.
For Vision fans, this doesn't mean that Paul Bettany's hero won't return to the MCU in the future. WandaVision's conclusion reveals White Vision gaining the original Vision's memories and flies away from Westview. Therefore, White Vision’s future remains unknown.
If ever White Vision returns, fans would certainly anticipate a Wanda and Vision reunion. Sadly, for now, Marvel hasn't confirmed any project that includes Bettany's Vision.
Doctor Strange in the Multiverse of Madness is now showing in theaters worldwide.