I've always wanted to run this build: http://us.battle.net/d3/en/calculator/witch-doctor#WbYTPh!dWV!YZbZba
With Loot 2.0/RoS I'm finally going to pursue this.
Proposed legendary affixes that may boost this build's potential (as best as I can remember them):
~Plague of Toads seek enemies and can explode twice
~Locust Swarm lasts much longer (double duration? 5 minutes? can't remember)
~Fetishes last until they die.
Actually, the affix said "Your Fetish Army lasts until they die," so I'm led to believe it won't impact the Sycophants. Also, I don't think there is a max to Sycophants, but the most I've ever had out was around 12. Using Fetish Army kills all your Sycophants, so I try to avoid that skill seeing as Blizz killed all potential synergy.
P.S. I've put together a list of all the proposed Legendary affixes I thought would help summoners like us in RoS, so in case anyone's interested:
ItemPassive_Unique_Ring_520_x1 - Chance on hit to summon a herd of murderous cows.
ItemPassive_Unique_Ring_526_x1 - Pets deal 100% more damage.
ItemPassive_Unique_Ring_554_x1 - Increase attack speed of your pets by 100%.
ItemPassive_Unique_Amulet_105_x1 - After earning a massacre bonus, summon forth 5-10 skeletal guardians for 45 seconds.
ItemPassive_Unique_Ring_600_x1 - Summons shadow clones to your aid when you stun an enemy.
ItemPassive_Unique_Ring_643_x1 - Blocks have a chance of summoning a hell hound.
•ItemPassive_Unique_Ring_549_x1 - Zombie Dogs stuns enemies around them for 1 second when summoned.
•ItemPassive_Unique_Ring_550_x1 - Zombie Dogs take 30% of any damage dealt to you.
ItemPassive_Unique_Ring_523_x1 - Summon a Fetish Army after you kill 2 Elites.
ItemPassive_Unique_Ring_552_x1 - Reduce the cooldown of Fetish Army and Big Bad Voodoo by 1 second each time your fetishes deal damage.
ItemPassive_Unique_Ring_596_x1 - Your Fetish Army lasts until they die.
ItemPassive_Unique_Ring_624_x1 - Zombie Dogs instead summons a single gargantuan dog with the power of all other dogs combined.
And here's the proposed change for Fetish Army and the new Passive:
Fetish Army Cooldown: 120 seconds / Summon an army of 5 dagger-wielding Fetishes to fight by your side for 20 seconds. The Fetishes attack for 130% of your weapon damage as Physical.
You can have 1 additional Zombie Dog summoned at one time. The damage of your Zombie Dogs and Gargantuan is increased 50%.