Patty Jenkins -- who directed the Oscar-winning film Monster and the pilot for Emmy winning TV series The Killing -- was signed to direct the next Thor movie after scheduling conflicts prevented Kenneth Branaugh from returning (although he's said he'd like to direct another film for Marvel).
Right on the heels of the announcement that "Thor 2" has finally landed a director, Patty Jenkins, was the announcement that, um, they're pushing it back to November 2013 from July.