I highly doubt it. I mean, technically they might be able to do that because it appears that WandaVision will have something to do with the multiverse, but I really doubt it. Even though Peters was good in the role, I think Disney will want to distance whatever they are going to do with the X-Men from what Fox did, and returning one of the actors would be a very direct link to the past. So I suspect they'll just wipe that particular slate clean and use Evan Peters as a new character. Even if it was going to be Quicksilver, that wouldn't really mean anything to Wanda. She is bonded to the version of Quicksilver played by Aaron Taylor-Johnson who died in Age of Ultron, not the version of him played by Peters.Of course, no mention is made whether he will be playing the same character.