Apparently Mike Morhaime said during the Activision earnings meeting that WoW subscriptions have dropped by 600,000 this quarter. In the future they plan to release expansion packs at a faster rate, which probably means they'll be smaller (I'm guessing this will affect the content patches too).
It's already affecting content patches.
Honestly, every single thing I hear about WoW these days just gives me less reason to ever come back. I was excited as hell when Cataclysm came out, the Beta was an awesome experience. And then I saw that Blizzard had learned presicely nothing from the way they handled raids and gear in Wrath (Emblems). I know many others feel just like me, this game simply isn't aimed at me anymore.