On an interview with Tim Howard it has been confirmed we will visit the land we have practically no information of, Akavir! Six new playable races, each with a starting home, and new content regarding combat, which will be more hand-to-hand oriented, as well as more underwater locations! More information on UESP and here we have a link with the Interview in written format : click
It was an April's fools joke, so it's closed.