A couple of things occur to me.
If either (or both) instructor or student have had the virus (proof required?) then presumably the individuals could fly together?
It may be a year or two away but when things do get back to "normal" maybe there might be a resurgence in people learning to fly, especially if they can afford to buy their own aircraft, as travel by general aviation will be seen as more "virus free"?
Similarly will we see a rise in the corporate side of aviation?