A lot of class changes have been made in the Wrath of the Lich King beta and one of the most notable changes are the toning down of Warlock's damage output. Blizzard want Warlocks to be more like the Hunter, making their pet's factor into the Warlocks damage output. Blizzard are also changing the damage output so Warlocks that invest in group/raid utility should be lower, while those who sacrifice the utility talents should come very close to a Mage.

Priests recently received a buff to Inner Fire giving it healing power, but that will be changed to give Inner Fire a Spell Power buff making the spell useful for Shadow Priests as well. Inner Fire will still have its current charges mechanic due to the fact that if they were to remove it they would be forced to up the mana cost. It is unlikely that Inner Fire will be made undispellable similar to how Mage’s and Warlock’s armor work now, and Blizzard are unsure if they like the way that Mage’s and Warlock’s armor is undispellable.