we are probably talking about business war between The9, NetEase and Blizzard so I wouldn't be surprised something coming out of the blue to delay the reopening, just as a revenge.
Besides, it seems that the current trend for the Chinese government is to be not favourable to MMORPG, so ...
On a note aside, I took benefit of the servers being down to test Perfect World yesterday.
Well, it's nowhere near Wow in terms of playability, graphism and game richness. On the other hand, the universe is Chinese (for the fans), it is also free for non harcore players (no need to pay irl money for advanced equipment or for account protection), I do like this idea.
I guess people fed up with Wow would have to migrate to Warhammer or EQ2