"Jane Heffernan, the director of York University’s Centre for Disease Modelling, would not predict how long she believes shutting down schools and working from home could last. But she acknowledged she has seen studies suggesting it could be months to two years, including a study from Imperial College in London that predicts social distancing could continue for 12 to 18 months. "
Humans being social creatures, that worse case scenario seems like it's going to be very hard to do. And, that's just social distancing; imagine a prolonged period of more severe restrictions, like shelter-in-place/lockdown.