Leading up to the release of WandaVision, there has been plenty of discussion about its followup: Doctor Strange in the Multiverse of Madness. In recent interviews with Elizabeth Olsen, after having started filming for the Doctor Strange sequel, she has expressed her joy at seeing Sam Raimi work and his “use of camera.”
There has been plenty of speculation from fans about how WandaVision would lead into Doctor Strange's next adventure and how it involves Wanda. Still, many also wondered if the Sorcerer Supreme may make an appearance in the show itself. A recent appearance from the actor in the virtual launch event for WandaVision may further validate this speculation and previous rumors.
In the virtual launch event for WandaVision, before it releases globally on January 15, several cast and crew joined to answer questions and talk about the show.
Near the end of the launch event, three fellow MCU stars joined to ask the cast questions.
Full Launch Event Video:
WHAT THIS MEANS
Of course, this doesn't suggest that all of these actors will be appearing in WandaVision -- that'd just be ridiculous. It's more than likely that Hiddleston and Mackie are present due to their own Disney+ shows releasing later this year after WandaVision. Benedict Cumberbatch's appearance is more interesting, which could be explained by Elizabeth Olsen co-starring in Doctor Strange in the Multiverse of Madness. It could also hint at previous rumors of Strange appearing in a small role for WandaVision.
In that original report from insider Charles Murphy, Benedict Cumberbatch would join for the last week of filming. Obviously, that may not have exactly panned out as planned due to the pandemic, but Cumberbatch was going to be on set filming for at least a week. Murphy theorized that Strange might be involved in the birth of Wanda's twins, as Strange actually helped deliver them in the comics.