Would the clubhouse need investment? VS only moved over to the North in January 2017 ( I think) BA’s S terminal lounges are lovely so would expect the same from VS ones in the North still.
I don’t know but would doubt anything has been done to it since VS left, no other airline would have a use for it and VS and GAL hinting (however likely/ unlikely) at a return I would think it would just be mothballed for now