Here is the datamined class tuning and tier set changes in the latest Patch 10.1 PTR build! Note that this diff contains some live hotfix class tuning.
Class ToolsBloodTalentsFrostTalentsUnholyTalentsSpecialization (1)
Effect #2 NEW Effect #5 Apply Aura: Modifies Damage/Healing Done Value: 15% Affected Spells: NEW Effect #5 Apply Aura: Modifies Damage/Healing Done Value: 15% Affected Spells:Talents (2)
Deals (59.214%71.0568% of Attack power) Shadow damage and causes 1 Festering Wound to burst. Effect #1 Effect #2 School Damage Value: 0 (AP mod: 0.592140.710568)An unholy strike that deals (40.373%48.4476% of Attack power) Physical damage and (22.24%26.688% of Attack power)% Shadow damage, and causes 1 Festering Wound to burst.
Effect #2 School Damage Value: 0 (AP mod: 0.403730.484476)PvP Talents (1)
Reanimates a nearby corpse, summoning a zombie for 20 sec that slowly moves towards your target. If your zombie reaches its target, it explodes after 3.0 sec. The explosion stuns all enemies within 8 yards for 3 sec and deals 20% of their health in Shadow damage. Effect #1 NEW Effect #2 Dummy Value: 30Spells (1)
Fires a blast of unholy energy at the target, causing (47.031%51.7341% of Attack power) Shadow damage to an enemy or healing an Undead ally for (265% of Attack power) health. Eternal Agony Increases the duration of Dark Transformation by 1 secAnima Powers (1)
Fires a blast of unholy energy at the target, causing (47.031%51.7341% of Attack power) Shadow damage to an enemy or healing an Undead ally for (265% of Attack power) health. Unholy Command Reduces the cooldown of Dark Transformation by 1 sec Class ToolsBalanceTalentsFeralTalentsGuardianTalentsRestorationTalentsTalents (1)
You gain: Feline Swiftness Read more on wowhead.com