Variety reports that Guillermo Del Toro will be too tied up directing a movie adaptation of some book about midgets and dragons that he won't have time to direct his pet project, Mountains of Madness, or anything else for that matter.
With Del Toro blocking out four years for [The Hobbit], it’s likely that the studios are aiming at starting shooting next year and releasing the films in late 2011 and 2012.Link.