I believe some solution will have to be found, because if we're stuck for another year with COVID....
I'm no medical doctor, but I've followed this very closely, as much as I can, and part of my Ph.D. thesis was psychoacoustics and neurophysiology. What we haven't talked about is the brain damage, which is quite possible if the metabolism on the cortical...on the brain surface is overtaxed, because we tend to activate very large parts of our brain surface in simultaneous interpreting.
There are quite a number of health concerns that medical studies have to investigate. I feel nervous about the situation at the moment. I have no panacea or silver bullet, but there are plenty of interpreters in the U.S., for instance, in Washington and other locations. You might want to set up interpreting hubs to rope them in, or probably the Translation Bureau has solutions ready. I haven't talked to them.