reported on earlier, Wrath of the Lich King isn't heading towards a speedy approval for Chinese audiences, leading to problems for The9 if they can't get Wrath approved by the government. However, unlike The9, Blizzard is downplaying the issues Wrath may be facing.
Blizzard has told GamesIndustry.biz that "World of Warcraft continues to operate as normal in mainland China, and we're continuing to work with our local partner, The9, toward the launch of Wrath of the Lich King there. An official announcement will be made once it's ready to go."
It seems that everything is on track for Wrath's launch in China according to the company, but only time will ultimately tell when Wrath will be able to get away from the new stringent regulations holding it back.