I know the chances are very low but IF this is a bomber then the first thought that comes to my mind was that stealth striker model that popped up a couple of years ago, and since we have no idea what happened to that project there might be a (very small) chance that it is that striker.Deino posted the link in the Chinese Aviation Industry thread and ask for a translation already. I just posted a short translation there.
This the first flight of certain type of plane since transferred to the test flight center. This plane's mission profile is special and the flying style is also unique, flight speed and heigh of this plane exceeding all other test planes since the inception of this flight test center.
The difficulty of this flight test mission is extremly high, but preparation time is short that put heavy pressure on this project and team. The flight test center achieved a breakthrough in the field of hypersonic flight.
And the plane color is dark. Maybe some kind of Chinese new hypersonic high attitude reconnaissance plane or bomber? Or hypersonic high attitude UAV... but then the article did mention pilots. I hope it was my avatar's first flight. It might be bigger news than 2016.