Very shortly they will have a test that will show coronavirus antibodies. Once someone has that in their possession it will prove they are immune. I would assume such a person would be in high demand as an employee while all others will be in low demand. NPS could hire such people as gate attendants. Then the fee system could be back up and running. The few parks still open would presumably be in high demand. But once they have immune gate guards a quota system could start to allow social distancing.
Otherwise I fear we will be shut down for 12+ months until a vaccine arrives.
Otherwise I fear we will be shut down for 12+ months until a vaccine arrives.