We must understand that not all stages will be a similar production as current live TV stages. We'll see helicopter footage, in car and maybe one ground mounted camera, not multiple cameras like on the current live stages. That won't need an increase in start gaps.
As for watching stages live while waiting for start, I think the crews currently do it at the power stages. Also, Neuviille knew in Wales before starting the Power Stage that Ogier had finished and would be the champion.