I doubt that you can bet on such events somewhere and I have no idea how odds would be determined.
Cut of payments is understandable and right thing IMO. First of all, players aren't playing right now - they aren't doing their job now. It's first reason why. Also, clubs lost their sources of income - matchday revenue from tickets, TV rights, so players should understand that. Ignorance of it and requirements to get full money could lead to bad outcomes. Clubs will be forced to sack their casual workers - administratiom, stadium staff and etc. I think it could even lead to liquidation of some poor clubs. There is dome talks about it in Bundesliga.
Maybe OP wants to have a bet against anyone here if ever there will be no available online betting as I doubt there will be.
Nice idea OP as an alternative option to make money, but how much will you bet if ever there will be someone here that accept your deal?
Cutting salaries or payments is expected to happen at any major or big leagues. I don't understand why it turned into serious arguments if deals are properly arranged. Will follow the story.