Today Bioware, Games Workshop and EA announced a new, free to play spin-off of Warhammer Online called Warhammer Online:Wrath Of Heroes. Beta invites start in around 2 weeks, so get signed up now if you are interested.
From what has been released, it appears to be an arena style game with set hero characters. Each character will have ~5 abilities that can be used and will be instant cast or channelled.
The big “sell” for the game is the 6v6v6 style game where 3 groups fight it out in fast paced action. When you die you can choose a different hero as a strategic move to help your team. There appears to be some progression/exp for unlocks of abilities etc.. but we will need to wait on more details for that.
You can view the marketing materials and signup for beta here:https://wrathofheroes.warhammeronline.com/