I would guess Warcraft 4! I would be tickled pink!

starcraft ghost being revitalized for the next xbox.

It is using the World of Warcraft engine..

I always imagines the Blizzard people to be Anti-Wii for some reason. They would be fools though not to take a crack at the Wii. I'm sure it will be a big game. ;)

     It's probably Universe of Star Craft or Nine Gates of Diablo then.

warcraft 4.
probably not...

I actually read somewhere long time ago, with the release of Lich King, that the Warcraft series is not complete, there is so much more to fill in.
A Warcraft 4 would obviously fill those gaps, making the series complete (With the final island, Dwarf Mines or whatever it was named, and the death of Sargeras.)

It has to come sooner or later, else they won't be able to make another expansion to WoW. It would be dumb to add stuff that has only been mentioned in Warcraft books, and not in the Warcraft games.

If I remember correctly :)

Weren't they rumored to be in talks with Microsoft or something?

Diablo 3 for wii confirmed? just joking, but still this would be cool(well it's not too hard even visuals could be on par with pc).

if this new game would be on a wii and wouldn't be a new IP then i guess it would be either The Lost Vikings or Blackthorne. maybe new RTS in starcraft/warcraft universe?

Hope its a new IP... Blizz hasn't made a new IP since Starcraft.