Yeh! Finally!
I wonder if it will use Battle.net?
Yes, it will use Battle.net.
It'll probably like War3, and it'll probably suck. Everybody will migrate from Starcraft because it's *gasp* 3d, and ruin that too.
From the screenshots and the website in general, I very highly doubt it will turn into WC3. The UI is very similar. Hero units are present, yes, but all of their pictures have been from the single-player campaign, so there will obviously be hero units there.
mmorpg = ? multi blah blah blah player game?
rts = real time strategy?
MMORPG = massively multiplayer online role playing game (WoW)
RTS = Real Time Strategy (SC and SC: BW)