@ JamesG, There will be schools where that may happen but $ pockets are Mariana Trench deep at Grinnell, Williams, Bowdoin, and Swarthmore. They’ll get through.
Still, very tough already for these kids and will be brutal if athletes in the Classes of ‘20 and ‘21 lose two spring seasons. Fifth years at these schools would be financially, lets’s say, unappealing.
If ‘21 spring sports are cancelled, then I think extra seasons are off the table and everything will reset. HS Class of ‘21 may actually have a “normal” off-to-college experience with no (or smaller, at least) logjam of players ahead of them.