Rumor is that it is nerfing them hard in at least four areas, and one of them they just say that something one unit could do before, they just can't do anymore, so that seems different than the usual updates for armies. I don't have an interest in Dark Eldar, and the only game I ever played against such an army of them, years ago, the guy cheated when I was defeating him with Orks. It is not a highly seen army in local stores around here.