Hmm.. by reading the the chinese wow forums on wowchina.com and by refering to some of my chinese wow friends, it seems that the9 did not upgrade the wow servers instead merged it with area 4 and gave another game called "The Sun" the servers. Many chinese wow players are furious and there has been a riot at the gate of the9. I do not know the reason behind this lie but if you read the forums on wowchina.com there are millions of angered chinese players. This resulted in chinese wow players crashing the servers by all logging on one server and lagging it till it drops. You can also notice the servers are also much slower than they were before. Hopefully, one day the servers will be updated, but it is not now.