From the makers of the movie Wendigo (Larry Fessenden, James Felix McKenney, Brahm Revel) comes an animated series of the same name. As far as I know, it's been in development since 2004 and is still in development.
You can see images of both versions of Wendigo here.
Apparently there's also a WENDIGO comic book by the same creative team.
These critters look cool, but they don't look like Wendigos. As far as I know, the Wendigo doesn't resemble a deer.
For more on the subject, see The Best Indian Movies.