There are also Tweeter updates : http://twitter.com/search?q=%23pdxconvention
Mount and Blade: With Fire & Sword
Due out sometime in the first quarter of 2011, With Fire & Sword will add new elements to the game franchise such as firearms (muskets and pistols) and the new Captain multiplayer mode which will let up to 16 players control a squad of soldiers. Look for seven new multiplayer maps, new castle siege features and multiple endings for the game's single player mode in this new game.
Hearts of Iron 3: For The Motherland.
Edit: Got the PC Gamer page up:
There are 15 new PC games being covered today that include: Magicka, Cities in Motion, Defenders of Ardania, Pride of Nations, Supreme Ruler Cold War, Sword of the Stars 2: Lords of Winter, King Arthur 2, Magna Mundi, Navar War: Arctic Circle, Crusader Kings 2, Pirates of the Black Cover, Hearts of Iron, Dreamlords Resurrection, Salem, and Gettysburg.
Of those, Gettysburg, Pirates of the Black Cove, and Salem are brand new announcements