Probably companies will be cutting back on sponsorship - individual and of tournaments Difficult to predict what overall effect it will have.
Saw an Instagram video recently where Chan Peng Soon and Goh Liu Ying expressed their gratefulness to Li Ning for extending sponsorship for one more year in these tough times. These are the testing times for companies and players to trust each other and strengthen their bonds.
Sponsorship is tricky because it is betting on the future. The future potential to capitalise on popularity. Sponsoring an established player with a huge fan base should pay for itself but even that is less certain at the moment because the demand is lower than normal. There are no models for this situation and companies are generally risk averse. Once the season starts up I expect to see a mad scramble to either secure the best deals or get out of existing contracts as cheaply as possible.