Blizzard has finally taken the wraps of the next Hearthstone expansion. Called One Night in Karazhan, the expansion will feature four wings as in previous expansions. Legendary cards will also make their appearance as will nine new class challenges. In addition a new spellbound game board will make its debut. Players will need to have unlocked all nine heroes in order to play.
Check out the teaser information on the Hearthstone site.