In a recent interview with The Wall Street Journal, Samuel L. Jackson confirmed the casting of Elizabeth Olsen (KILL YOUR DARLINGS) as Scarlet Witch in THE AVENGERS: AGE OF ULTRON. Nick Fury himself dropped this little piece of information when describing what he knows about the film thus far.
I know we’re shooting in London, that James Spader is Ultron and going to be the bad guy, and that we added Ms. [Elizabeth] Olsen [who will play the Scarlet Witch], but I don’t know what she’s doing, if she’s on the inside or the outside. I haven’t seen a script.
Marvel has yet to officially announce Olsen’s casting, so it is possible Jackson is just working off of the same rumor that’s been floating around for several weeks. Then again, it’s hard to imagine Jackson even attempting to keep up with online AVENGERS chatter. At this point it, would be surprising not to see Olsen’s name in an upcoming press release for THE AVENGERS: AGE OF ULTRON.