•Fel Armor has been redesigned. It now surrounds the caster with fel energy, increasing spell power and causing the warlock to be healed for 3% of any single-target spell damage he or she deals.
All I can say is 'Yes Please'.
So glad I have been lvln my warlock for my main PvP toon
Also -
•Curse of Exhaustion now reduces movement speed by 30%, down from 50%. Its range has been increased to 40 yards, up from 30.
These don't seem like huge changes, but my god how affliction is going to be that much more fun now.