While it's not confirmed if SW will be in DoFP it's pretty much assumed if Quicksilver's in it then she will be too. While I don't have a problem with this it will be interesting to see how they explain two different uses of the same characters in two different movies. This could be one of the coolest things ever or one of the biggest s*** storms ever. Best bet would be if Marvel and Fox got together and discussed the uses of the characters so they won't confuse the heck out of the GA and even us. Edit: Sidenote I think Fox had Singer write the two characters into his story once Whedon announced he has them in his script for A2. Fox wants them to be associated with their brand first since they know DoFP is coming before A2.