Holy priests and Restoration druids just received some potentially sad news earlier about their spells Circle of Healing and Wild growth, respectively. Both spells have been known to be quite similar because of their AoE healing capability. Ghostcrawler posted in the forums that they are thinking of adding a 6 second cooldown for both spells
If implemented, this change would affect Circle of Healing more than Wild Growth since the it makes sense to spam the former because it heals it's full amount right away while the latter does it over time. This would make healing AoE encounters harder to do in the future. Would this decrease the value of both the Holy Priest and the Resto Druid to the raid in the future? Only time will tell I guess. While it might increase the value of the Chain Heal spamming Restoration Shaman to the raid, it might not necessarily lower that of the other two based on what Ghostcrawler said. He mentioned in the same post that if this change pushes through, they will have to tweak encounters keeping in mind that Circle of Healing will no longer be spammable.
Of course, a nerf is a nerf so if this pushes through it's still going to suck. I just hope that it's not going to suck too much.