As per past BlizzCons, attendees will have the chance to play upcoming games from the StarCraft, Diablo, Warcraft and World of WarCraft developer, as well as attend and participate in discussion panels, tournaments, and community contests.
To compensate for the event's ever-increasing popularity, BlizzCon 2009, the fourth such celebration hosted by Blizzard, has been expanded from three to four convention halls.
"We've been amazed by the incredible response to each of our previous BlizzCon events," said Blizzard CEO Mike Morhaime. "We look forward to this new opportunity to meet Blizzard gamers from around the world."
More details on BlizzCon 2009, including ticket availability and pricing, will be revealed on the official BlizzCon website "as the event draws closer."