I'm really tired of them making announcements that have absolutely zero content in them. "We're doing a new game, it'll be great!" and then "It'll be really, really awesome!" and finally "No, really, you have no idea. Here's a secret, it'll be like WoW, sort of, only a lot better."
I get it, they're really excited for their new property. Oh, and they want people to play both WoW and their new game. Well, again, that's hardly a surprise. Apple hopes you buy all their products too, not just an iPhone.
I say this as a huge Blizzard fan that owns and has played all their games over the years, so I really would like them to give us something more concrete. Otherwise, they'll hype it up so much that when specifics are released, it'll feel underwhelming.