early on in WoD raiding healers may have to be given "healing assignments" (tanks or Group 2 for example) due to the changes to all healers and mana regen.
Just reread this and decided to give my input on the situation:
From what I've seen in Heroic content anyway, it doesn't look like healers will be getting assignements. As bad as that podcast might have been making it out to seem, aoe healing isn't in as bad of a state as they think. On the other hand there might be generic healing assignments like paladins healing tanks, or shamans healing tanks.
STATE OF HEALING CD'S:Revival [Monk]: Eh, its alright, doesn't heal for as much as the others but dispel component works nicely.
Tranquility [Druid]: Probably better if not equal to Healing Tide going into WoD. Remember that Tranq is now only RESTORATION spec.
Healing Tide [Shaman]: A little bit worse than tranquility for sustained aoe damage
Divine Hymn [Priest]: Probably the strongest healing cd that there is right now. If used with tranquility it guaruntees a topped off raid
Devotion Aura [Paladin]: Same as usual. Strong on specific fights, but not all of them. Remember that devo now only HOLY spec.