It looks like Blizzard is going to help shamans, rogues and druids get in on the AoE (area of effect damage, or hitting many mobs at once) fun to make them more useful in dungeons. Greg "Ghostcrawler" Street has acknowledged that many players are using AoE abilities to clear dungeons, and they're going to leave that tactic alone for now unless it gets too out of hand in heroics and raids.
Shaman – we are removing the threat component from Fire Nova Totem and Magma Totem and increasing the damage from Magma Totem.
Rogue – we are removing the cooldown from Fan of Knives and adjusting the damage calculation slightly to make daggers more useful for this ability.
Druid – we are adding Swipe (Cat) as a baseline ability.
These changes are coming in the next minor content update. Read the full post here or below.