Despite it seems a move backwards, I want to come back to discuss the differences in the devices in the video.

The 3D rendering, the one with the with cover, is obvioulsy a QWERTY device. But the one shown in hand, looks like it is the N9 proto leaked ages ago. It have a black over just like the old proto, and a slit that seems to be the separation for the screen slider.

I don't doubt there will be a keyboard-less device. But the video itself doesn't add evidence to it - the video shown 2 QWERTY devices.