I mentioned last week that I'd discuss the changes for warlocks while listing out loot in the new raid instance. I may have fibbed a little. I tried to slide in patch change discussion without it reading like I shoved two posts into the space of one, and I miserably failed.
You can read the latest patch notes for yourself, but the PvE DPS gist is that affliction's petless power days are diminished if not over and demonology might be the new top dog. PvP warlocks might be more interested in Blood Fear's metamorphosis from an offensive fear to the Nature's Grasp-like Blood Horror and Soul Leech's change from a trickle heal to a stacking shield.
Regarding of whether you chase Conquest or Valor Points, we warlocks will have a major problem in patch 5.2. I'm not talking about the endless debates of whether fire should be green or whether warlocks should always have a minion at their side.
I'm talking about the removal of the imp ability Blood Pact, due to Dark Intent gaining the 10% Stamina buff to its effect. Future warlocks will wonder what this column is named for!