In good news, I *know* there are other sports that are working to "open" this year, so there will be some case studies on the "quarantine everyone together for a while to run the season".
Unfortunately, one of the biggest situations in which the virus can spread is when people are packed close together, yelling and screaming. Doesn't bode well for packed stadiums, IMO.
Like Augie said, there's still time, we'll see how it all plays out...