Matthew "Kick-Ass" Vaughn Frontrunner For X-Men: First Class

Coming Soon says the director is in negotiations to helm the X-Men prequel

So, about the same level of certainty that Joss Whedon is directing The Avengers , then.

X-Men: First Class , with a script by Chuck creator Josh Schwartz and Jamie Moss, is about the early days of Xavier’s School For Gifted Youngsters, concentrating on how Professor Xavier and Magneto became arch enemies.