Can Xbox scorpio play games in native 4K?

The hardware is meant to support 4K gameplay, as well as virtual reality. Xbox division head Phil Spencer stated that Scorpio was designed as a response to the growth of 4K gaming and VR in the high-end personal computer market, and that existing Xbox One games will experience performance improvements

Spencer stated in an example that Halo 5: Guardians, which uses a scaling system that dynamically lowers the game's resolution when needed to maintain a consistent frame rate, would be able to run at its native resolution with no scaling on "Scorpio"

Yes it can and what really makes the difference is HDR. You will need a 4K TV that supports HDR. I cant wait to get one.

http://www.extremetech.com/gaming/235952-microsoft...

They're saying it will, as long as you have a 4K TV of course. We won't know for sure until closer to when it comes out.

that's the idea. you will also need a 4K TV to see the difference.

Most likely. Possibly better, since technology would have advanced by the time Project Scorpio comes out.