spoilers:end of spoilers
Well, if nothing else, that ending clears up who has been behind it all along, if not why. Either that, or Agnes is also under control while controlling Wanda. Unless I’m mistaken, that could be the Darkhold Wanda found in the basement. This may be a large part of why Wanda is brushing off so much about all this, including Billy having trouble with telepathy. Also, there is a mid-credit scene at the 31:52 mark. Is this Quicksilver in league with Agnes? Or is he also under mind control to distract Wanda?