Although it took them a long time before they officially got back the rights to the X-Men franchise, the folks at Marvel Studios were still able to get away with the inclusion of incorporation "mutants" Wanda and Pietro Maximoff who both debuted in 2015's Avengers: Age of Ultron. Of course, the Maximoff twins weren't exactly referred to as mutants as Fox still had the rights to the characters.
This opted director Joss Whedon to do a major tweak on the twins' backstories and instead of them coming from the mutant race, it was explained that Wanda and Pietro conveniently got their powers through the mind stone which was hidden in Loki's scepter. The same gem is what brought Vision to life. Now, with the X-Men set to arrive in the MCU and WandaVision's premiere just around the corner, the question on everyone's mind is: could Wanda end up becoming retconned as a mutant in the current timeline?
There's no doubt that the upcoming Disney+ series WandaVision could be the gateway to a lot of things that could affect the course of the MCU moving forward. For one, it could potentially lead to the mutants' arrival (some of them, at least) to the franchise and explore new details surrounding Wanda's true story in the current Marvel canon.
Considering the fact that director Matt Director has somewhat planted the seeds for the House of M storyline to be incorporated in the show, we can confidently say at this point that the show will ultimately lead to the revelation that Wanda is in fact a mutant after all.
Now, you may be asking, with the Maximoffs MCU backstory already established over five years ago, how can they explain Wanda and Pietro's true mutant origin? Well, the simplest solution to that is to ignore the explanation given in Age of Ultron by simply telling viewers that none of them were true. It wouldn't be that hard to digest.
The official synopsis for WandaVision reads:
Marvel Studios' WandaVision blends the style of classic sitcoms with the Marvel Cinematic Universe in which Wanda Maximoff (Elizabeth Olsen) and Vision (Paul Bettany)—two super-powered beings living their ideal suburban lives—begin to suspect that everything is not as it seems.
Consisting of nine episodes, WandaVision premieres this January 15 on Disney+.
Also Read: WandaVision Rotten Tomatoes Score and Critic Reviews So Far! Is WandaVision Worth Watching?