For my part, I think they've really done a good job of capturing the spirit of the Dark Elves. Whatever your feelings are about witches, worshiping the gods of Chaos, or scantly clad ladies, the overriding drive that unites all Dark Elves is an undying hatred for those haughty, do-nothing fairy-boys, the High Elves. There's just something endearing to me about a race of people whose primary motivation is spite. Only in the Warhammer universe could they pull something like that off.
The update also says that the next phase of testing will focus on Empire and Chaos. Let's hope that once that's done, they'll finally move into guild beta.