Other notable features include optional support for pen input, NFC, a fingerprint reader, a dock that includes a keyboard, and LTE / HSPA + connectivity. (theverge.com)
They could use the camera along with Move Controls, and add in optional support for PSVR. (levelsmack.com)
It'll support voice control as well, and it'll also have optional support for Wacom digitizer pens. (technologyguide.com)