This is not an official statement from WB....let's wait for the press release.
It seems she has been cast but everything else (it being Faora and all may be the article writer's conjecture.)
See deadline.com for their less fantastic take on the story
http://www.deadline.com/2011/04/warn...el-villainess/
If it is Faora, I'll take latinoreview off my **** list, but it still hasn't been confirmed, hopefully, we'll get official news shortly.