Square Enix just released Wakfu patch 0.305, and this one introduces the Sacrier and Xelor classes to the game. It also includes two new "arcade" dungeon types: Time Attack dungeons that must be completed quickly, and Survival dungeons that require players to face waves of enemies.
Wakfu is currently in closed beta in North America. For more details, check out Senior Staff Writer Chris "Pwyff" Tom's thoughts on the game.