Just to be sure, I put it into a spoiler...Vertigo 7 wrote: ↑Tue, 16. Feb 21, 16:49SpoilerShowDisney announced they're doing a Deadpool movie as part of the MCU phase 5 and Ryan Reynolds is confirmed as the headliner. They're playing the X-Men thing very close to the chest, though. I honestly wouldn't be surprised if they struck a deal with Fox to incorporate the X-Men movies into the MCU as canon to pick up additional sales of the X-Men movies Fox produced.
I think the prevailing theory is that what ever is going on with Wandavision is leading up to the Multiverse of Madness and that's going to be the thing that brings X-Men into the MCU. It's just not been clear if they're going to use the same characters from Fox's X-Men or cast new ones.
I wouldn't be concerned about the costumes though. That was just a call back to the comics and really intended as a "neat" moment but not directly relevant to the story.
Perhaps this is a new timeline where she creates them...