Announced at this year’s Comic-Con, “Thor 2” has dropped the number in favor of a subtitle. The film slated for release on November 8, 2013, is now titled Thor: The Dark World. Now this title might give keen, knowledgeable readers a hint at what it might allude to, but for the rest of you it seems the cat is out of the bag. In an interview with I Review Too, stuntman James Grogan let this little bit slip out:
The other day for example, this is quite random but I was working on Thor 2, he explains, I had a load of stunt guys in and the director came in and he said Look, we want you all to be elves, and I was like What the hell is an elf anyway? and he said I want you all to walk around like these supernatural animals, honestly it was the most ridiculous thing ever but you just have to not be self aware and get on with it.
Yup, sounds like the Dark Elves to us. You can read up about them some here.