Blizzard has announced that all of those people that don't get to go to BlizzCon can still check out what's happening there. They will be broadcasting via WoW radio for anyone that wants to tune in.

WoW Radio to Broadcast BlizzCon
While we wish every player could attend this year's BlizzCon, we understand that a large number of players will be unable to make the trip. But there is still hope! Blizzard is pleased to announce that WoW Radio will be offering live video feeds of some of the different events at BlizzCon. You can look forward to watching some of the Q&A panels, the costume contest, interviews with Blizzard employees, and several other big events live from your computer. As we head into the last few weeks before the convention begins, please keep checking WoW Radio's BlizzCon website, for more information.
WoW Radio also airs Shoutcast "Radio Shows" every day that you can listen to from your computer. These talk shows cover the latest news and community discussions about World of Warcraft. Check out their website for running schedules and downloads of their archived shows.