Had an idea, but no knowledge in the field of AR.
Actors are in separate, but equal physical areas. Same cameras, lighting, necessary props.
AR is used to transmit realtime imagery of the other actors to each other's field of vision, so they can interact. Cameras record.
The footage of the performances are merged together, so it appears they actors are all in the same room, close to each other, but social distancing and hygiene is perfectly maintained.
Thanks in advance.