Re: Evan Peters Joins X-Men: DOFP as Quicksilver
In the way these X-movies usually work, Scarlet Witch and Quicksilver would probably be related to no one and unimportant. Qs might just be some guy who runs really fast and Scarlet Witch some woman who can [something not related to Scarlet Witch's actual powers] and she's all dressed in black with red details.
But since this is probably about flexing those rights in front of Marvney more than getting the oh, so important Maximoffs onscreen, watch for an incredibly awkward scene where Magneto aproaches them and lovingly calls them "my children" and c"mutants". Ian McKellen flipping the bird at the camera optional.