Blizzard's splash page.
So, what's new today? Well, those eye slits from yesterday are most certainly eyes now, and there's a ridge of some sort between them. Our friends at WoW Insider seemed to be inclined to think it's Warcraft's Arthas, and honestly, they make a pretty compelling case. So, it looks like an answer may be close at hand, so it may be your last chance to speculate: Who's beneath the ice?
[Update: After the jump we have a picture that focuses on one of the runes, one that happens to bear a striking resemblance to the Protoss logo you can see here. Thanks Charlesgrand!]