"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Bluetooth Enabled iPods?
The interview with Nedelcou reveals that consumers will soon be able to listen to music wirelessly from their iPod through their car speakers. The upcoming wireless-capable iPod is expected to include Bluetooth technology.
Apple has also incorporated Bluetooth technology into its iBooks and PowerBooks.
Update: One user points us to this patent from Apple which was filed in April 2003 which describes a "wireless media player system that includes a hand held media player capable of transmitting information over a wireless connection and one or more media devices capable of receiving information over the wireless connection".
Update 2: Image from patent depicting the wireless iPod.