Blizzard takes forever for their games. I don't see D3 or SC2 coming out anytime too soon. SC2 will likely come out first though. Apparently they have rebuilt both D3 and SC2 multiple times each ending in failure. And as much as I loved D1 and D2 I'm a bit shaky on D3. The team is the WoW team that is building it and their influence is VERY heavy in the art direction which is NOT a diablo art direction. Oh and of course SC2 is ganna be a carbon copy, they'd lose all their sales if it wasn't.
Where the hell do you get this information?
First of all, neither SC2 or D3 has been "rebuilt multiple times each ending in failure". SC2 development started around 4th quarter 2003 and has only been developed once. D3's development started in 2005 and has only been developed once. Additionally, the WoW team has NO influence in D3. The D3 crew is made up mostly of ex-Blizzard North developers, the lead designer is Jay Wilson, a former Relic designer and the lead world designer, Leonard Boyarsky, was one of the co-creators of the original Fallout.
Quit pulling info out of your ass if you don't know the facts.