Subscriptions down for WoW

Blizzard to speed up development
To address the issue Blizzard will be speeding up development so that there is not such a long period between expansion packs. By delivering more content to players faster, it is believed that this is the best strategy to keep players engaged and playing the game.
Whether speeding up development means less content per expansion pack, this is anyone’s guess. We suspect, however, that shorter timelines could contribute to less content per expansion pack; but that is unconfirmed and remains to be seen. There is no announcement describing how Blizzard intends to space out the release of these expansion packs, but we expect to hear more about this soon.