1st class compartments would be very good.
Also I like the idea of tv screens so you can have a drivers eye view, they could either go in 1st class or a special designated area (or at least a gps system that tells you exactly where you are on the screen
I think compartments in 1st could eb a very good idea, not all of the seats ofc.
Maybe some Sofastyled Bench seats taking up the space of 2+1/2 regular first seats (ie could seat three people if required.)
Then that 1+1/2 space could eb the corridor, and a little space for the door to open and you to get to your seat (sliding doors?)
A bit like this with comfortable sofa-benches though
Or maybe add shaded glass partition between the corridor and seat backs (maybe even doors?) like here
