Confirmed: Pre-orders start on the 9th. You can extrapolate the launch event date from there.
Blass previously reported that the next generation iPhone would hit retail stores on September 16th. Based on those dates Apple would likely unveil the iPhone 7 on Tuesday, September 6th or Wednesday, September 7th.
It's widely expected that the iPhone 7 will feature simplified antenna bands, a larger camera, no headphone jack, and a second speaker for stereo audio. The iPhone 7 Plus is expected to get a dual lens camera for better zoom, 3GB of RAM, and possibly a Smart Connector. Other predictions for both devices include water proofing, a new space black color, and a Force Touch Home button with haptic feedback.
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