Assuming we're in-person at our normal time in April/May, we'll do it like normal and go down to elementary timing wise. We bought 12 of those jupiter test kits this summer that we'll use and sanitize in between each group. They seemed to do the job we needed them to do this fall.
I did insist my assistant (who does this) wear a face shield and an N95 while doing it. I'm hoping by then maybe we'll have been jabbed with a vaccine though too.