Blizzard has reverted the mana tea changes announced back to where they are on live. It was quite controversial, but the change had a huge impact on the effectiveness of Mistweavers in PVP.
After a lot of heavy discussion, we’ve decided not to go ahead with the Mana Tea nerfs for now. As many of you have pointed out (and we’re keenly aware), solving the issues with Mistweavers’ mana regen is not a small task, and while we’re not happy with how things are working currently, it’s just a bigger problem than we’re comfortable trying to solve in 5.4. We’ll be revisiting the issue in the future.
Note: There is a possibility that the next PTR build will have a number of other changes that we were considering, but have since decided not to go ahead with. Should that happen, they will be reverted in the build after next.
So for non-Mistweavers that were hoping for a nerf of some sorts to the insane mana regen of monks in raids will be waiting longer, and Boomkins will continue to compete for all the non-spirit pieces with monks.