I love the idea of tree form being a cooldown. It does suck that you can't run around in form the whole time, but it opens a ton of possibilities.
What do shadow priests think of the idea of making Shadowform a cooldown as well? While at the same time keeping the utility we have now.
I doubt we would be able to keep all our damage, but we would be able to heal until we popped shadowform. Dot people up, toss a renew on yourself. Shield, mind blast, flash heal. It could open up a whole new wolrd of utility for us in both pvp and pve.
Then when we pop shadowform we get a damage buff, maybe a few other things, and we can't heal or any of the normal holy/disc things while we are using that cooldown, would be a good trade off.
I know I kind of half assed this thread, I hope it made sense. Just seems interesting to me.