Regarding Mage/Warrior.
I honestly don't see why the class would need such a substantial nerf. The class is strong, but by no means overperforming in Dark Core.
Sure, its Static Field destroys older content, but I really hope you didn't take RofL as a point of reference. Any fast and ideally ranged class has a major advantage there, given the surplus of damage output we currently deal with.
The latest content should always be the one referred to in balancing.
By the way, this comes from someone who has done countless runs with the probably best geared M/W on the server. He has played the class for ages and most certainly knows what he's doing. Yet I fail to see why the class should see a nerf.
If you absolutely must, please restrict the nerf to older content and not DC.