Matthew Vaughn is kinda flaky, so it wasn't all that weird when he stepped away from directing the sequel to 'X-Men First Class' 2 weeks ago (he was quickly replaced by Bryan Singer). It will be even less weird if todays rumor from Collider is true and he did it because he was offered the job to direct 'Star Wars: Episode 7'.
And though he's a great director and would be a terrific choice, it's still just a rumor for now. And now, we play the Waiting Game. (pause) Aw, the Waiting Game sucks. Let's play Hungry Hungry Hippos!