Patch 4.0.1 going live also marks the end to our permanent Tree form, as it's now become a cooldown (and, likely at some point in the future, into a revamped model). Whether you loved it or hated it, tree form will be missed by many. There were some amazing emotes (best /dance and /cheer, and surely the most tragic-looking /cry), tree-related puns, raid members 'sap'-ing you, threatening to chop you down with their axes or light you on fire, and just running around Dalaran... the fun went on!
A send-off for our Trees! You will be missed.