Of course it won’t be business as usual. At S’s school move out in March was a controlled choreography with tight time slots to ensure social distancing and a record keeper at the elevator for possible contact tracing of student and his one move out helper.
Can colleges guarantee safety? No. Can colleges create policies to reduce risks? Yes. Can students behave in ways that increase or decrease risks? Yes.
Believing colleges have ever had an ability to eliminate risk is the delusion.