Type-Moon, together with Newtype and ufotable will be collaborating for a mega project in 2011. No mention on what the project is though it was hinted in the the January issue of Newtype (Feb 2011)
More information will be announced in the magazine when it is available.
Type-Moon are known for its popular works such as Fate/Stay Night, Tsukihime and more. ufotable have been involved many anime works such as Manabi Straight!, Honey and Clover and more.