According to AppleInsider people familar with the matter, said Apple will hold the iPhone 6S and iPhone 6S Plus launch event in the week of September 7th. September 9th was the last year iPhones announcements event. This year is a Wednesday.
The new iPhones will arrive with FORCE TOUCH DISPLAY feature and an A9 new processor. The external design is expected to be the same as the iPhone 6.