Our D3 in town is bringing in students two weeks earlier than usually, asking them to first quarantine themselves at home for two weeks prior to coming, then alternate attending class in person to maintain social distancing and only socialize with others on their floor/building (it's a small school) for the first two weeks at school. Once they have a sense of cases (and they expect them and have isolation housing ready when needed), they will widen or narrow the boundaries as needed. They will have daily class, including on Labor Day, and then send the students home for Thanksgiving. They'l do their last week of class there and take their finals online and hopefully be able to come back for spring semester.
There also are rules about wearing masks outside your dorm, grab and go meals instead of buffet style, etc.
It's an interesting plan and if people actually follow through, could be workable. They also are planning football. We'll see.