And here I thought it looked real.
There's clearly a light shining down from above, but the circular area of light doesn't encompass the full width of the keyboard, hence the appearance of a different color in the keys to the left and right sides.
The phone-- or whatever is being used to take the video-- doesn't have a light shining from it, hence the lit-up and shadowed portions of the keyboard don't move about as the camera is moved about.
But the lettering and everything else sure looks real to me.
Whenever someone comes out with these photos or videos of a new model of keyboard, a lot of people cry "fake"-- and sadly, some of them are fakes. But some of them do turn out to be real.
So there's no way to be certain until time reveals whether this one is real or fake.
But if it's real, I'm wondering why Yamaha would choose to call this model a "990," which doesn't seem to leave much room for future model numbers.