Actually I don't know what was first but :
Talent Trees
The talent trees for the death knight are Blood, Frost, and Unholy.
* Blood: Talents in this tree focus on weapons, armor, and strikes.
* Frost: Talents in this tree focus on control, counters, and combos.
* Unholy: Talents in this tree focus on spells, summons, and diseases.
That's for talent trees but as you might know Deathknights also seem to have some self only aura and then you get:
Example Abilities / Presences
Death knight talent trees are complemented by Presences -- self-only auras that benefit the death knight. Selecting the matching Presence for each tree augments the class abilities for that school of magic.
* Blood Presence increases damage output by a percentage and restores a percentage of damage dealt as health.
* Frost Presence increases threat and lowers damage taken by a percentage.
* Unholy Presence increases attack speed and reduces the global cooldown on death knight abilities.
So nothing really changed, they just made it a bit clearer
I wonder if they would give death knights their own jokes and stuff...another voice atleast!