BTW, we got nice news here :
"We just recently got sent a question here at WoW Insider asking why the US and EU kills were often called "world firsts," and this is why: China usually gets expansion content much later than the other regions of the game do.
But recently, Blizzard mentioned that they were aiming to release the content closer together, and this appears to be a result of that: it's still not simultaneous, obviously, but a few months is better than a year or so. Apparently 17173.com has heard that China will be getting Wrath of the Lich King next week, so if that does happen, we can look for the first Chinese level 80 and the first Chinese clears of Naxx and the other endgame raids soon after that."
That would mean that the third expension set will be coming out at the same time for everybody. What a news.