Knight of the Blazing Sun and the Black Guard - are to be introduced to Warhammer Online. Rather than just slip them in with a patch, Mythic is making a festival of the event. The classes won't be available to everyone at first; instead, by completing certain tasks, players will be able to unlock them early.
From November 17th when the event launches, a new tab in the Tome of Knowledge will take players to the Live Events page. There will be a new daily task placed on the page each day, and completing those tasks earns influence, public quest style; the ultimate prize, which will require a login and task completion each day, will be the ability to play the new classes a week before general release.