You cant see anything about VR. Without actually putting on a VR it looks like you are just looking at any regular game trailer. Thats going to be VR's toughest sell. It was impressive the way Microsoft showed off Minecraft to the public.
You got to see what the person was seeing with morpheus with a tv screen by the user. You get a great idea of how the VR is working.
I want the same for Hololens. I want to know what you see.