"Hey Siri" support and possibly wireless charging case alongside AirPower charging mat.
Sony Working on App to Stream PS4 Games on Mac and PC
Remote Play is currently limited to various Sony devices, including the PlayStation Vita, PlayStation TV and newer Xperia-branded smartphones and tablets. All new PS4 games must be compatible with Remote Play, except for games that use peripherals such as PlayStation Move.
Some people asked if we plan to provide Remote Play function to PC, and yes, we are indeed working on an official application for PC/Mac. :D— Shuhei Yoshida (@yosp) November 27, 2015