Continuing the early April Fools Day event (at least hopefully!) is this press release from Blizzard...

The Burning Crusade: Enter the Wisps - Blaze on 3/31/06
Blizzard is proud to officially announce the second new race of the upcoming World of Warcraft expansion set, World of Warcraft: The Burning Crusade - the mysterious wisps! At the Battle of Mount Hyjal, the Burning Legion gave the world a taste of its true, terrible power. Archimonde the Defiler himself led the vanguard, crushing all who stood in his way, determined to reach the World Tree at the mountain's peak. In the end, only one power was strong enough to destroy the insidious Archimonde: the Wisps.

Check out the new Alliance race on the Burning Crusade Website, and learn more about the wisps' historical background and their awe-inspiring racial ability: Detonate!