And pre-expansion activities start 18th May.
Stay awhile, and listen...
But subscriptions are unaffected.
World of Warcraft: Burning Crusade Classic to get paid character cloning and boosts - and "pre-nerf" raid bosses
Blizzard on striking a balance between the game as it was and as people remember it.
Two days and six channels of activities.
Aims to "channel the spirit" of real-world event.
"Our focus was not to try and make WoW feel like a console game."
"We felt like that's not the right message."
But it faces an uphill battle.
Is "deeply disappointed about this decision".
"We wanted to do it right."
As executive vice president and general manager.
Plus Murloc pets and other in-game items.
Blizzard says it will "continue to actively monitor" for further attacks.