Here is rumor that reports the upcoming World of Warcraft: The Burning Crusade launch has been delayed to 2007 that was set on 25th Dec. this year. Blizzard has started Beta testing just few days before and that is the major cause for the hindrance in the release date.

Report set on Vivendi states Blizzard won't release the game until the manufacturer is fully satisfied with the product. For the reason the company has missed the key selling season. Mike Morhaime, head and cofounder of Blizzard said that they respect the WOW: The Burning Crusade fanboys and they are trying to give last touch to the title and the additional time consumption will positively bring some extra and improved features to the title.
Via: next-gen