So if you've been living under a rock here's the news: Blizzard announced Diablo 3 at the World Wide Invitational's opening address. This has brought much delight to many fans, and closure to the many who believed that the changing splash screen has pointed to this game. During the address the splash screen changed to a flash teaser of the latest in the demonic property. It a pretty exciting announcement, but I'm not convinced that this is the only thing there.
The demon in the logo does match up with the eyes and brow of the central character, but the flash does not add to the existing chain of splash screens. This bit of news also fails to explain the interesting icy bit in the lower left hand corner of image 5.5.