"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
AirPods and AirPower: Everything We Know
Video of Steve Jobs at UK iPhone Launch
While there was live text coverage, watching the video itself provides a better feel for the event.
Includes portions of the Q&A session where he talks about 3G, iTunes activation, iTunes Wifi store, Fair Usage limitations, Unlocked iPhones, iPhone pricing, and more.