Needs more Michael Fassbender also
I'd personally like to see a War of the Ancients movie personally. one without a Knaakified crap plot but rather the original plot the lore started out as. It'd be completely new and wouldn't have any severe scrutiny or retcons in it like a movie pertaining to the WC1-WoW timeline.
I hope a young demon hunter is the main char > and no not Illidan a new demon hunter
Nice cast overall except i disagree with the following:
-William doesnt fit deathwing imo
-Hugh jackman as illidan, dont see it
-David Wenham would make a better arthas imo. he was great as faramir
-Forgot to add uther - Liam Neeson would make a great uther. he excells in fatherly figure/mentor roles
Don't take this list too serious ;-) I just tried to find some good look-a-likes, which are also capable actors.
I think a real movie shouldn't be staffed with too many prominent actors. Lord of the rings managed this issue perfectly!