Still, it seems Blizzard is dedicated to achieving annual releases. Earlier this month, Jeff Kaplan (WoW's lead designer) told Joystiq that Blizzard's plan for expansions are "a little bit more ambitious than one every two years. We have to weigh that against the quality of the product and how much content we want to put into it. We won't put something out until the quality level is there. So, our goal though is to provide content quicker than we have been up until now. We've really beefed our team up -- we have about 100 now and when we started we had around 50."
It looks like the developer has given WoW fans plenty to look forward to in the coming months and years, though some may interpret this as series of bear traps being laid on the path of escaping a sordid addiction. Mind your step.