I would advise reading the whole thread, but here is Spencer musing on a return to play and what it would entail:
Spencer does mention the questionable morality of forcing players to return during the apex of a pandemic. It would not shock me if there are players that balk at a return unless safety is guaranteed. Unless players are isolated under strict conditions I do not see how logistically possible it is for the league to play.
UFC managed to pull of what will probably be the first of many cards during the pandemic. I think it's easier to run an MMA show because you have about 12-14 fighters at most plus whoever is involved with training, medical staff and television production. I can see non team sports like boxing, tennis, and golf following suit and returning sooner than later.
MAYBE you can get MLB back, because contact between players on field is minimal outside of plays at the plate. Guys could possibly wear masks while in the dug out or even on the field (but that would probably make things difficult during live plays). South Korea has baseball up and running but they are way ahead of where we are. We aren't even 1/10th of what we need to be to reach SK's level. I still think it's risky.
NBA, NFL, and NHL will be impossible to run unless everyone is heavily isolated from the outside world, which will be impossible IMO. the human element is way too unpredictable, someone will break quarantine. I cannot fathom the NFL suiting up if we don't have considerable drops in the infection rate and a reliable treatment to curb deaths. Imagine being an offensive lineman having to engage a DT or DE? Dudes are breathing in droplets like crazy. Players can play with facemasks under their helmets like they do in the winter, and visors can be put on all helmets, but still will that be enough?
I think Shaq is right. Just shut it down, see where we are in November and December. If we have a viable treatment that turns this thing into something that isn't a death sentence for a majority of the population, i can see things opening up but with sensible conditions in place to prevent spread.