Take a look and make your own conclusions. They seem to be emphasizing starcraft on their website. Startcraft 2 or World of Starcraft seems to be pretty guaranteed =P.
Actually, they are going through the timeline. day1.jpg has warcraft 1 and 2, day2.jpg has diablo, day3.jpg has starcraft. They're planing on unveiling something big, no doubt, but it doesn't necessarily have anything to do with SC.
"Stephen Wolfram is the creator of Mathematica and is widely regarded as the most important innovator in scientific and technical computing today." - Stephen Wolfram