Unless the virus automagically disappears, there will always be a “second wave”. I don’t know about you, but I learned immunology in medical school. Until enough people have immunity, someone somewhere will become infected and pass it on to other people. With that in mind, what purpose does it serve to keep everything shut down for another two, three, six, 12 months? Again, the concern was that this new virus was poorly understood. Expectations based on limited understanding but ample caution yielded the “flatten the curve” measures. These measures were only intended to slow the rate of infection in expectation that waves of critically ill individuals would inundate the hospitals. This has not been observed in most areas. Curiously, in nations with no special lockdowns (eg, Sweden), the trends closely match nations in lockdown. This should lead to questions about how effective lockdowns have been.
In my opinion, now that this virus is better understood, it would be better to cease isolation. Drawing this out until winter with a large uninflected population will be far worse. Data now shows that CV19 is infectious by nature of longer than average viability outside host and it is much less lethal than its cousins (SARS / MERS). Although fortunately this virus has a slow mutation rate for a retrovirus, the longer we give it a foothold, the more time it has to mutate. Holding out for a vaccine is foolish and frankly, given the very low mortality rate, unnecessary for most.