A supposed screenshot of a notice (via TechWeb) sent to Apple retail employees suggests that Apple is readying a China iPhone 6 (and 6 Plus) launch for October 10th. As stated on the Chinese site (translated):

This is shortly after China’s national week-long holiday. Independently, the Chinese press have also reported the same October 10th date for the iPhone 6 debut. Last week, regulators stated that the phone was nearing final approval, causing black market iPhone 6 prices to plummet.

Last year, Apple managed to launch the iPhone 5s in China in its first round of sales. A launch on October 10th would mean the iPhone 6 launched three weeks behind schedule in the country, assuming Apple was originally aiming for a day-one release in China like last year. Despite the lack of China availability, Apple announced 10 million iPhone 6 and iPhone 6 Plus sales in the first three days.