During their press conference at Gamescom, EA and Bioware Mythic just announced Warhammer Online: Wrath of Heroes. Building on Warhammer Online: Age of Reckoning, the game will be a pure free to play Player versus Player game, where three teams of six players each will face off against each other.
According to Warhammer Online-blogger Werit, who recently visited Mythic headquarters, the scenarios available in the game will be built around the scenarios currently available in Warhammer Online. You choose from various pre-made heroes, many of them based on WAR's current classes, and you'll be unlocking various tactics which you use to customize your experience.
Beta signups are already available on the Wrath of Heroes-website. Expect to hear more about it during Gamescom.