Pandemic - Grants the periodic damage from your Corruption and Unstable Affliction spells the ability to critically hit for 100% increased damage.
The talent was simplified to enable Corruption and Unstable Affliction to crit, but could have been interpreted as a nerf because spells normally just crit for 50% more damage. The new build should quell those apprehensions. The spell is effectively the same for one point instead of three. That, my friends, is a buff.
Malediction - Increases your spell damage by 1/2/3%, and increases the periodic critical strike chance of your Corruption and Unstable Affliction spells by 3/6/9%.
With the bonus to Curse of the Elements made baseline, Malediction became a vanilla spell damage increase. The build 9658 version makes it a mandatory talent that will do crazy, sexy things to Affliction DPS. Send some donuts to Irvine. Let's make sure this makes it to the live realms.
Eradication - When you deal damage with Corruption, you have 6% chance to increase your spell casting speed by 6/12/20% for 10 sec.
This is a reversion and an effective nerf. An earlier build redesigned the talent to increase Shadow Bolt crits, but this change nerfs the talent by forcing players to invest three points (most builds currently put only one) to get the full effect but with a lower proc rate. Hold those donuts.
UPDATE: I said before in my last post about the Warlock changes on the PTR that Blizzard seemed intent on removing Immolate from Affliction's rotation by removing all incentive to cast it. I was dead on. In fact, in the current build Immolate now shares the same debuff category as Unstable Affliction. Only one or the other can be up on one target from the same Warlock. Now Affliction Warlocks can't cast Immolate even if they wanted to. Well, they could, but why would they want to? This is a nerf. Unless the damage component of Immolate is compensated through other means, this looks like a DPS drop.