Update from Jeffrey just now is that this morning the doctor has said he is clear of the Covid infection and once his liver enzymes are back to normal he can be discharged, as long as he is deemed fit enough by the physiotherapists. He has just seen the physios and they have passed him fit enough to go home. The final test I think was stair climbing.
He has accepted our invitation to stay with us for as long as he wants and said that having a drill sergeant for a mother will be good for him. His liver tests are headed in the right direction so we expect him to be discharged in the next day or so.