So, right now, Wild Growth has a 6 second cooldown, and a 7 second duration. In Cataclysm, the developers are thinking of increasing the cooldown on Wild Growth. A lot of people freaked out about the possible change. The mistake the developers are making is not talking about it with actual cooldown #’s in mind.
So, lets talk about it in terms of real possible numbers: if they made the cooldown somewhere between 7 seconds and 10 seconds, would it really be a substantial difference compared to how it is now? Sure, if they moved it to a 30 second or 1 minute cooldown, that would be huge. However, the scale of the change is likely not going to be that drastic, and a 30 second cooldown on WG would really leave us without a good AOE toolset (since I personally think single-target HOTs are silly as primary AOE healing abilities).
So, I’m predicting that at most, it would be a 10 second cooldown. That would allow for maybe 5 (2 second cast time) to 10 (1 second GCD) spells cast between refreshes. Only a difference of 2 to 4 spells. In addition, there would only be 3 seconds of down-time between when the spell ends & when you can cast it again. Given that they want to make our other spells better & more appealing, this change may actually even become welcoming, if we start to feel like we don’t have enough opportunity to use our other spells because of having to pop Wild Growth every cooldown.
In fact, I like the idea of having a 10 second cooldown with a 7 second duration, since that increases the need for thinking ahead & timing of our abilities. (ie. if I wait 2 more seconds, it will time more perfectly with the big AOE damage I know is coming, and if I pop WG too early, it’s possible it may run out before the big AOE is over, and rejuv may not be enough to cover it).
Also, with tranquility becoming more viable, it may be good to not have Wild Growth’s cooldown be shorter than Tranquility’s duration, anyway (so you don’t feel like you are losing out on a WG when you pop tranquility). So, a change to WG at a 10 second cooldown could actually open up resto druids to being able to use more of their expanded toolset.
A slightly longer cooldown on Wild Growth won’t be that bad – IF and only if Blizzard makes our other spells actually more desirable. An increased cooldown on WG needs to come with a reason to want to cast more than just rejuvs between WG refreshes. Anything longer than a 10 second coolodown on WG is probably also too long.