The image above is what you saw if you visited the official WoW homepage this weekend, and a few players wondered why Blizzard was talking about a real-time strategy game on a site meant to discuss a MMORPG. Yeah, how dare they do that!
But it's a good question-- Starcraft II will be (assuming it does get released) the first game Blizzard has published since WoW, and so there's a lot of questions about how this will all be handled. How much do the audiences actually intersect? (personally I love MMORPGs, but not so much RTS, if only because I'm so bad at them) And how is Blizzard going to connect the two games, if at all-- are we going to see ads for Starcraft on the loading screen for WoW, or even in-game? Blizzard fans will probably buy and enjoy both games, but there is likely a larger percentage of the WoW population who just don't care about an RTS, even if it is another Blizzard game.
Of course, Blizzard has faith in both games serving their audiences well-- not only is the Starcraft team well-equipped to build their game, but WoW, they say, won't suffer one bit. I tend to believe them on that one, as Blizzard undoubtedly hired a lot of people to make sure WoW is running as smoothly as possible, and while Metzen is apparently working on Starcraft as well as directing WoW's lore, I'd doubt the two teams have that many people in common. Of course, rumors persist that Blizzard will be announcing yet another game at Blizzcon. Along with the new expansion, multiple sources are still reporting that we'll hear about Diablo 3 in August. Can it be possible that Blizzard might be split three ways at the same time? And can that possibly be a good thing for WoW's development?