Fairly early on, fans quickly realized that Wanda, or someone messing with her, placed an entire town, West View, inside a bubble. It quickly became more apparent that the series would be jumping from different eras based on the American sitcoms Wanda saw growing up in Sokovia. As more and more footage was released for WandaVision, fans got to see moments of Wanda manipulating reality, one of her signature powers from the comics.
In a recent interview, Elizabeth Olsen teases that this powerful ability will be built up in the show. A magic show that Wanda and Vision perform for their neighbors in West View is one instance where Wanda will apparently exhibit her reality-bending powers.
In the newest issue of TV Guide Magazine, Elizabeth Olsen talks about the magic show they put on for West View and reveals that the show will explore more of Wanda's abilities only seen in the comics. Olsen explains that “She's a magician's assistant, helping [Vision] but doing all the tricks for him and not letting the audience know” and that “It's a very funny, gaggy” kind of moment.
Olsen goes on to explain that audiences will finally see abilities from Wanda previously only seen in the comics, hinting that these abilities have to do with how and why Wanda and Vision “progress to a different decade for a reason.” However, Olsen doesn't specify what specific powers these will be.
Elizabeth Olsen believed that Wanda Maximoff "has a tremendous amount of guilt” as she secluded herself from the world after the finale of 'WandaVision.'
Kevin Feige explained that they had to cut Doctor Strange from the WandaVision finale because "it would have taken away from Wanda," revealing that they "didn't want the end of the show to be commoditized to go to the next movie."
Kevin Feige confirmed that a deal was finalized between Benedict Cumberbatch and Marvel to appear in the final episode of 'WandaVision.'
WHAT THIS MEANS
While this could be talking about Wanda's own brand of witchcraft, similar to Doctor Strange, it's more than likely talking about her ability to change reality on a whim. Wanda exhibited this ability most famously in the comic book story “House of M,” in which Wanda recreates the world to be ruled by mutants instead of humans, while also granting everyone's deepest desires.
It's possible that during this magic show, while using her powers, Wanda might alter reality in a minor way, such as changing the shape of furniture, adding color to the world, or erasing an audience member from existence. As for why Olsen says this new ability is important in the context of the magic show, it could be related to Wanda's line to Vision about how “something strange happened” before, during, or after the magic show.
Wanda seems to have no idea at first that she's the one shaping these sitcom-inspired realities. So now the question is, when she does realize what she can do, will she stop or will things get worse?