As Blizzard no longer give release dates to their upcoming games, this has made some people more calm, waiting for the game to “be ready when it’s ready”, and other start to work themselves up more over it. Many a fan understand the pleasure of gaming, but not nearly as many understand how the development process is working and that it takes years to actually make a high quality game! As a discussion about perceived slow content production in WoW started on the official WoW forums, a rumour that has been circulating about Blizzard and how they divide their development staff resurfaced, implying that WoW-personnel have been taken off of Wrath of the Lich King to work on StarCraft 2 and Diablo 3 to speed up their release dates.
This is not just one single voice, as the rumour has been circulating for a long time, but it is never the less denied by Blizzard:
They also mentions that the reason for any “slower” production of WoW content is that before Burning Crusade was launched, a lot of the content released was already half made. “The actual internal development pace has changed very little over time. If anything, content is developed more quickly now than it was when the game began.”