So much depends on the politicians, who struggle to produce an O level biology pass between them. I suspect the question will be whether the instructor is willing to take the risk. Currently between 3 and 15% of the population are shedding virus. Say it comes down to 5%. How long will it take an instructor to fly with 20 students which statistically gives him a probability of 1? And while these percentages and the ability of the NHS to cope are important epidemiologically, the individual is only interested in his individual risk. With a moderate to high viral load infection, the death rate could be 50%
I am lucky - I am locked down with my fellow pilot so we can fly, until November at least, with nobody else in the aircraft. But it will be interesting to see how much risk the public are willing to take....