The Friday and Saturday schedules are out on the BlizzCon site, along with the floor plan. The StarCraft-related panels are outlined below, all of which take place at Stage A, the Panel Discussion Stage:
Friday
StarCraft II: Heart of the Swarm Campaign and Lore Q&A
2:00 PM – 2:45 PM PDT
Get an overview of the campaign and have your questions answered about StarCraft lore.
StarCraft II Multiplayer
3:15 PM – 4:15 PM PDT
Find out what the designers think about the state of Wings of Liberty’s multiplayer balance, and get a glimpse at new units planned for Heart of the Swarm.
Saturday
StarCraft II – Blizzard DOTA & Mod Tools
12:30 PM – 1:30 PM PDT
Dive into what’s new for map tools in Heart of the Swarm and learn more about the philosophies and gameplay concepts behind Blizzard’s next mod: Blizzard DOTA.
StarCraft II: Heart of the Swarm Art & Technology
1:45 PM – 2:45 PM PDT
Get a behind-the-scenes look at the creation of in-game and cinematic artwork and effects for the next StarCraft II expansion set.
The full schedules can be seen here. There are also StarCraft II discussions in the Lore Zone, one on Friday from 2:30 PM to 3:30 PM PDT, and one on Saturday from 1:00 PM to 2:00 PM PDT. The floor plan can be seen below, and can be enlarged by clicking on it:

There is also a free BlizzCon 2011 Guide mobile app available here, which has the full schedules, event alarms, a personalizable BlizzCon calendar, and the floor plan. Definitely a must-get for anyone personally attending and wanting to see the most of what they want at BlizzCon.
Sources:
BlizzCon - Friday Schedule
BlizzCon - Saturday Schedule
BlizzCon - Floor Map
BlizzCon - Mobile App