And NO cabin crew, just a monitor with someone giving instruction, some vending machines at the back and the emergency/safety instruction cards ( optional) can be bought from another vending machine! ahhh the future is bright!
Why not pods where if travelling as family you have a 6 person pod or a 2 person if an individual with whatever bed, communication and TV as is required.
Get in the Pod in the terminal and then just pushed into plane where front and back open and pods get pushed into terminal.
Who wants to look out from a tiny at cloud when you can see all the TV stuff you want or a set of Cameras that show all the views from the plane.