I think Disney also has major advantages other races don’t, being entirely contained on private property. They have a lot more control over spectators, which I think are a major concern for larger races. I also don’t think timing is going to be as large a factor as it has been in the past, either. Right now and for the foreseeable future, park hours have been cut back, so later park opening times will potentially open up the time window for a rolling or more spread out start.
It’s all speculation at this point, of course, but more than ever I think Disney needs the guests that these races bring. The number of people going since reopening has, by all accounts I’ve read, been disappointing. That‘s one more incentive for them to find a workable solution. Ultimately, though, despite my thoughts above, I highly doubt that they’ll drop some of the races. I’d be willing to bet on this being an “all or nothing” situation. We’re either going to get the full Dopey or nothing at all.