I see a lot of people asking for Worgen tails, but nobody is bringing up the major points for it. They’re completely overlooking that the Worgen Skeleton actually supports a tail as part of it’s animation set.
-Saurok quests on Isle of Thunder that allows you to walk around as a Saurok. Many of the animations do have the tail moving along with the emote. (/laugh, /kneel, /sleep, etc.) Even if you’re at range and right click a target to go into combat, the tail gently sways side to side. Unfortunately I can’t seem to get the game to lag a bit to check attack animation, but I’m sure Wowhead has a compendium of animations.
-Blackwing Descent Boss, Maloriak. In the Adventure Guide you can even take a look at his model. His tail sways side to side while idle and may have some animation while you’re in combat with him, but I’m too lazy to look into it at the moment.
-I’m sure there are plenty of other examples, but those are the ones I could think of off the top of my head.
Anyway, my point is, the Worgen skeleton and rig supports the addition of a tail so just having it as an option would be great for those that want it. And for those that don’t want tails can keep them off.