Blizzard has announced that they will be nerfing Mages on the next Weekly Reset.
Mage AoE damage is generally trending a little higher than we’re comfortable with after the most recent update. We’re planning to make a few targeted adjustments to Mage AoE spells to bring them down to a more reasonable level. In addition to the AoE adjustments, Fire will be seeing some additional tuning, as Fire single-target damage is also trending higher than intended.