How do pandemics usually end? And how will this one finish?
I don't think that any two ever end the same way. In the past, when people did not perhaps keep such good records, many like Black Death, Spanish Flu and Leprosy, just disappeared quietly when nobody was paying attention any more. But of course some never do, seasonal flu has been with us now for thousands of years, many STDs still linger on, others like measles are come back kings which pop up here and there at random, while others like polio are still there but only in small pockets where religious leaders oppose vaccination.
Unfortunately, all the fear of a vaccine is going to make that option even more difficult to achieve. If natural immunity only lasts months, it is impossible to achieve herd immunity without a vaccine, but you need 70-90% of a population immune for herd immunity to be effective. Seems to me it's going to be a long road for the US. Other countries that embrace a vaccine will fare far better than we.