Scarlet Witch will be at the front and center of Disney+'s WandaVision, but there's speculation that the new series could feature the return of Quicksilver. Scarlet Witch, aka Wanda Maximoff (Elizabeth Olsen), lost her twin brother, Pietro (Aaron Taylor-Johnson), during their first team up with the Avengers in the MCU. Since she is set to somehow bring Vision back from the dead in WandaVision, it's plausible that she will do the same for her brother.

Wanda and Pietro were first introduced into the MCU during a post-credits scene in Captain America: The Winter Soldier. The twins from Sokovia joined HYDRA and went through experiments that gave them both superpowers. The twins, now under the aliases of Scarlet Witch and Quicksilver, sought out revenge on Tony Stark in Avengers: Age of Ultron. After learning of Ultron's intentions, Wanda and Pietro aligned with the Avengers to save their homeworld. Despite having super speed and other physical powers, Pietro was killed during the Battle of Sokovia after sacrificing himself to save Hawkeye and a young boy.

Related: Scarlet Witch's ORIGINAL Comic Costume Is In The MCU Now

Wanda carried on without her brother and remained a member of the Avengers during Captain America: Civil War and the fight against Thanos. She became romantically involved with Vision and fought to protect him during Thanos' quest to acquire the Infinity Stones. Even though she was a victim of the Snap, she was brought back in Avengers: Endgame. Now Wanda will presumably reunite with Vision and live some kind of "normal life" in WandaVision. The series is rumored to feature Wanda's superpowered kids, Tommy and Billy, and according to an audition tape, a mention of an uncle could indicate Quicksilver is making his MCU return. Considering Wanda's powers, she could be strong enough to revive the dead.

The Scarlet Witch (Elizabeth Olsen) - Marvel and The Avengers

Vision, who was powered by the Mind Stone, was killed when Thanos complete the Infinity Gauntlet in Avengers: Infinity War. Since the Snap was undone, not the events prior to the conflict, Vision was not brought back to life. Thanos destroyed the Mind Stone, and it's unclear how Vision will come back without its power. That said, Wanda will somehow figure out to revive her lover in WandaVision. She's already proven to be one of the most powerful heroes in the MCU. The powers she originally gained from the Mind Stone gave her psionic abilities as well as energy manipulation, telekinesis, and mind control. Her connection to the Mind Stone could bring out unseen powers that allow her to replicate the Mind Stone's power in keeping Vision alive.

In Marvel Comics, Scarlet Witch had the ability to manipulate reality with chaos magic. She was also capable of reviving others from other planes of existence. Since WandaVision will set up Doctor Strange in the Multiverse of Madness, multiple universes could come into play in the Disney+ series. There's already a belief that the show is set in alternate realities so this could hint that the Vision featured could be from another universe. If physically resurrecting Pietro isn't an option, Wanda could call upon a Quicksilver from the multiverse for various reasons.

The mystery will ultimately be solved when WandaVision drops in December 2020.

Next: Marvel Theory: Ultron Will Return In MCU Phase 4

Key Release Dates