In the book Apollo's Arrow (which came out in oct 2020), Dr. Christakis said

"Either way, we will be wearing masks, for example, and avoiding crowded places. I’ll call this the immediate pandemic period. For a few years after we either reach herd immunity or have a widely distributed vaccine, people will still be recovering from the overall clinical, psychological, social, and economic shock of the pandemic and the adjustments it required, perhaps through 2024. I’ll call this the intermediate pandemic period. Then, gradually, things will return to “normal”—albeit in a world with some persistent changes. Around 2024, the post-pandemic period will likely begin"