"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
AirPods and AirPower: Everything We Know
Genius Feature for TV and Movies Pulled From iTunes 8.1
References to the updated Genius feature have been removed from the "iTunes A to Z" features page, and Apple has revised their "What's New" page, replacing the Genius section with details on the extension of Autofill to all iPods.
The reason for the removal of the feature remains unknown, although it certainly appears that it was a last-minute decision.