If so, what is your setup? As I understand it, courses that are expired in time gets unavailable to the students meaning that they can see it but cannot enter. Teachers, however, are able to enter their old courses. Are you fine with that or would you rather have your students to be able to enter their old courses in a read-only state? What do you do with students that doesn't complete their course, but only misses some detail in the last assignment? Do you re-open the course for the whole group, start a new course or something else?