We'd take this apparent leak with a big grain of salt, although there are things in the photos that check out. The packaging is decidedly different than what you get with the current, standard edition PS4 including a different model number (CUH-2016A) and a plug for PlayStation VR. And the system itself? As long-time PlayStation fans will attest, Sony has a habit of introducing refreshed consoles that aren't as ornate as the first-run systems. You'll likely get the full story in a couple of weeks.
Update: More pictures are emerging. Here's a direct size comparison with the existing PlayStation 4:
@GameOverGreggy @MarsRSA Anything for you Greg ;-) pic.twitter.com/ZRH66i9qRr
— shortman82 (@shortmaneighty2) August 21, 2016