"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
AirPods and AirPower: Everything We Know
The Return of the Newton (Apple PDA)?
AppleInsider now claims that Apple has had an ongoing PDA project which uses the same multi-touch OS X as the foundation and may soon be ready to see the light of day. They describe the PDA as an ultra-thin slate about 1.5 times the size of the current iPhone. The screen is said to have a high resolution (720x480) display that takes up almost the entire surface. The rumor site states that the PDA could see an announcement as early as January 2008 (Macworld San Francisco) but with a ship date closer to the middle of the year.
Apple's PDA project would represent another core business segment beyond the existing Mac, iPod, iPhone, Apple TV lines. The introduction of an Apple PDA would mark Apple's return to the PDA business, which it invented in 1993 with the introduction of the Apple Newton.