The next 2-3 weeks will indeed give a better understanding, but it will be mostly about the true danger of Omicron. There's no question that we have extremely high case number right now, and by the end of the month, we will see how that translates to deaths and hospitalization.
It's not going to provide much info on vaccines or mandates, but of course it will show us how the vaccines work against Omicron, and how important the booster was.