Predications:
MLB clubs would rather not see their systems have teams go under at inopportune moments, and mess with the ability to get 2021 going as normal. But, MLB clubs are hurting for cash as it is, and many won't have the money and/or desire to dump millions into funding minor league teams just so they stay afloat for the next year.
So, Prediction:
MLB teams won't be much help. Some MiLB teams will reach points where they are leveraged out and/or don't have enough operating cash to continue. No one wants to buy a business in that condition, especially given all the questions about the unknown direction of MiLB and the likely slow recovery when there is one. So, MLB teams will monitor their affiliates AND those of other clubs closely. As some of them go into bankruptcy, and then receivership when they can't raise short term cash for the same business reasons, MLB teams will swoop in and buy those affiliates for pennies on the dollar. A club that might be worth $30M will sell for a few million. The MLB teams treat them as part of their portfolio, gain some equity over a few years, buying an asset with costs already stripped down. Any slim operating profit they get from the owned affiliates is icing on the cake, and can be used towards overall system investments. They get to rebuild the teams' business structures as they see fit, to fit within their plan of how they want the systems to run. Plus, the negative conditions lower the value of nearly all teams, so the MLB clubs with the ability to do so, begin buying other clubs that didn't die off. Within 3 years, the percentage of full season clubs owned by MLB teams will go from miniscule to fairly large.