ShowBlitz reports that Marvel Studios is currently in talks with Game Of Thrones/Boardwalk Empire director Brian Kirk to take on Thor 2. The sequel is set to be released on July 26th 2013.
It's not surprising Kirk is getting film offers since both Game of Thrones and Boardwalk Empire have blown up thanks to his work directing several of the first season's episodes. While I believe Kenneth Branagh did an excellent job on the first film I didn't outright love it. New blood seems like a good move along with hiring Shane Black for Iron Man 3 coming out the same year. It's expected the second film will be entirely set in the cosmic world focusing on a larger cast of Asgardians and mystical creatures/foes. Which seems to sort of parallel Thrones slightly, so it could very well turn out for the better.