In the source code of various IOS 9 files are indications that future iPhone models get a better FaceTime camera on the front. It could possibly be a new selfie front camera with an LED flash and support for video in 1080p. In addition, features such as panorama and slow-motion will also be of use in combination with the new FaceTime camera.
New FaceTime camera for iPhone 6s?
The file CAMCaputeCapabilities in iOS 9 includes as developer Hamza Sood references as CAMCaptureCapabilities isFront1080p120Supported, which seems to indicate a slow-motion feature for the camera on the front. On the iPhone 6 and iPhone 6 Plus we currently find a 1.2-megapixel camera for FaceTime video can be recorded in 720p.Read More »iPhone 6S and iPhone 6S Plus get FaceTime camera with flash