According to several sources, this evening I am learning that David Tennant could be on his way to Middle-earth to take the role of the Elven King Thranduil. Tennant was originally linked to the role of Bilbo Baggins that eventually went to Martin Freeman. King of the Elves of Mirkwood and father of Legolas, Thranduil is a very important character in The Hobbit which would suit David Tennant perfectly. No official words from the Studios or David about a role for him in The Hobbit.
Filming of The Hobbit movie will start February 14, 2011 so I am expecting many more casting announcements in the next few days, stay tuned for more soon :)