This advert was first spotted on China's Weibo microblog announcing that they're taking advance orders of the iPhone 5S and 5C. But the phones are only expected to be announced by Apple sometime next week.  The picture depicts the iPhone 5C as having a colored back casing. 

Apple will also be holding a separate iPhone event in China on September 11th, immediately after the US announcement on the 10th. This is a pretty deal since they usually delay shipping to China. Guess we'll have to wait until next to find out what else Apple has up its sleeve.

Wall Street Journal