Sony has currently its hands full with supporting 2 systems: PS4 and PSVR.
But after "upscaling" the PS4 hardware with the PS4 Pro option, it could be possible that they will offer a "downscaled" PS4 handheld, when the time is right (compatible with all digital PS4 games, so no need for extra versions of these games and a full library on the go).
Until then, they should keep the Vita in stock of the retailers... that doesn't cost them anything and the Vita is still popular for third party developers.









