http://www.sclegacy.com/showthread.php?t=2820
GameSpot published 2 long articles after sitting in a panel with different developers of the game. The articles supply lots of new information:
Story:
* StarCraft 2 story takes place 4 years after the events of Brood War.
* The UED forces were destroyed by Kerrigan's armies (though a few surviving companies may still be around somewhere).
* The Xel'naga will figure into the story "in a rather epic tale."
* The Terran faction in the game will primarily consist of the "evil empire" of the Terran Dominion.
* The planets Char and Braxis ("Braxis Alpha") are coming back, along with new ones (such as Belshir, a Protoss jungle world).
Gameplay & Units:
* Blizzard aims towards a different experience than WarCraft 3, which means: no creeps, no hero system, less emphasis on micro.
* Units attacking from higher-ground will not be revealed to the target player.
* High Templars and Psi-Storms will be in the game.
* No plans for naval combat.
Art:
* The graphics of the game will be based on DirectX 9 (incase some of you worried about a Vista-only version).
* The new map editor for the game will be called "Scumedit".
* Starcraft II's units will have multiple "move cycle" animations so they don't all move in unison with the exact same frames of animation.
http://www.gamespot.com/news/6171176.html?tag=latestnews;title;1
http://www.gamespot.com/news/6171178.html?tag=latestnews;title;0