I think the opposite is likely to happen and crowds will actually increase when grounds are reopened fully. Fans have stopped going because they have been ordered that they cant attend by the Government and EFL. This is totally different to fans stopping because they are fed up with it. There will be a rebound when this is over as the vast majority will want their usual weekly ‘fix’ of live football again. I am getting bored of watching it on screen with no atmosphere and no fans banter.