Fang Zei said:
It ain't Vaughn.
Several weeks ago when news broke that Vaughn was dropping out of First Class 2, it was reported that he would be directing a movie of Mark Millar's Secret Service instead. Then the Episode VII news broke and people starting going "Oh, I bet you THIS is the REAL REASON he dropped out of First Class 2." Mark Millar himself even debunked the rumor.
For the time being, it appears to be down to Bird, Abrams and Spielberg.
I loved Abrams' Star Trek (and I'm looking forward to seeing what he does with the partially-filmed-in-true-15/65-IMAX sequel), but for him to go from two Star Trek movies to directing a Star Wars movie would be a little too much like what happened with Bryan Singer going from X-Men and X2 to Superman Returns. Plus, I'm already hearing people make jokes about lens flares during lightsaber duels.
I love Spielberg, but I think the time for him directing a Star Wars movie was 1999. There's too much ill will towards him now after Crystal Skull, regardless of how many of that movie's problems may or may not have been caused by Lucas.
Bird is probably my favorite all-around choice. I saw Mission: Impossible 4 in honest-to-God 15/70 and the IMAX sequences were amazing.
If Vaughn is not directing X-men First class 2, and if Bryan Singer does not step in to direct it i will refuse to see it. X3 and Wolverine origins sucked.