I think it will depend on a lot of currently unknown variables. How quickly they can identify treatments that work, whether people are immune after contracting the virus and for how long, how quickly they can produce a test that identifies if you have had the virus (perhaps mildly or asymptomaticly) and how widely available that test will be, how many people have the virus mildly or asymptomaticly across the population, how quickly a vaccine can be produced as examples.
I think we will have a very, very difficult 3 months minimum, 6 months realistically. I suspect 18 months to 2 years before a return to full “normal” whatever that looks like.