There are lot of obstacles. I am not holding my breath on this happening.
Above all, Arizona has to remain a state that has not been hit by a big outbreak of cases (they 'only' have about 2,500 cases). Nearly 5 M people live in the Phoenix metro area...as we've seen, these outbreaks can go quickly through the population. You can isolate the players as much as possible, they will still need people to clean the hotel rooms, clean the locker rooms, drive the buses, prepare food, etc.
Are players really going to accept leaving their families for 4+ months to live exclusively in hotels? It seems far fetched to me.