Originally Posted by
Babylonius
WW didn't start Mists strong, it was relatively poor except at AOE, and got steadily better as the expansion went on. WW started Warlords as the definition of over-powered, because of huge buffs the week before. Those buffs were reverted, and then some, and WW fell toward the bottom but climbed back toward the top during BRF and HFC. The problem was that the public view of WW never recovered to match how strong WW was in the hardest fights of the expansion.
WW will be fine in single target, but its specialty is multiple targets. If you prefer a "single target first" spec, then WW isn't for you. There is also the relative volatility of having only one dps spec, as you mentioned.
No one can see the future, and a thousand things can happen between now and then, so its impossible to say anything long term.