I believe the compliance rate will be similar to the first go round. Most people would rather go along to get along. From my experience in LA County, when that cadaver reinstituted the mask mandate, there was about a third of the people anywhere you went that didn’t wear masks. Within about two weeks I was back to one of only a handful of people not wearing a mask.
The compliance rate will be high because there’s rarely a downside to complying with a stupid mask mandate.
I would also point out that compliance should be 100% in a business establishment no matter how idiotic the mandate seems.