Cate confirmed as villainess Hela in Thor: Ragnarok
Yes, finally official confirmation from Marvel!
http://marvel.com/news/movies/26203/marvel_studios_confirms_stellar_new_cast_members_of_the_highly_anticipated_thor_ragnarok
They also released the first piece of awesome concept art for the film featuring Hela facing off against Odin's army in Asgard:
http://i.annihil.us/u/prod/marvel/i/mg/9/40/573f502b0fd8c.jpg
Check out this incredible cast, I'm even more pumped for this movie than I was before:
Chris Hemsworth - Thor
Tom Hiddleston - Loki
Cate Blanchett - Hela
Idris Elba - Heimdall
Anthony Hopkins - Odin
Mark Ruffalo - Bruce Banner/Hulk
Jeff Goldblum - The Grandmaster
Karl Urban - Skurge the Executioner
Tessa Thompson - Valkyrie
Is it November 2017 yet??