But is it not a cost based decision rather than a coronavirus based decision? As I’ve said before, every program that came from Studio B can be produced in other studios with no drop in the quality of programming, but (presumably) a significant saving in cost. If cuts have to be made, sadly it’s the exact area to make them. Viewers genuinely won’t notice the difference.
In terms of logistics/operations/studios, BBC News should be ran as if it is a commercial network, to be as efficient as possible. ITV News (although I appreciate a much, much smaller operation) is a perfect example - using the same studio for its main news bulletins and ITV News London, simply turning the cameras round as needed.
No idea if Studio B will return for the US Election, but a slightly modified Studio E (with the newsroom relit) would look far, far superior IMO.