I received an email from my daughter's college (Wake Forest) just after I posted my prior message. Turns out they are discounting room & board by 10%, because students are going back at the regular time in August, but ending at Thanksgiving. But you have to pay the full 100% initially--students who don't come back after Thanksgiving break get their 10% refunded; those who successfully petition to stay through the end of exams do not. A strange way to do things, since most kids presumably will not return for one week of classes plus exams. No word on activities fees, etc.
The entire "college experience" package will be greatly diminished (and was no bargain even in normal times at a private college). But I'll be writing the checks anyhow.