No, the CVC Exchange does not currently support enrollment waitlists so cross-enrolled students cannot be added to a waitlist in hopes of a seat becoming available. Rather, we recommend searching for an equivalent class at another college with seats still available.
For the majority of listings on the Exchange, any class that is full or has a waitlist will simply show as unavailable. However, some classes at certain colleges may show 1 seat available so you may still attempt to add the course, but the class is actually already reserved for a waitlist. If you attempt to enroll in a class like this you will encounter a waitlist registration error and will not be able to add the class.
We recommend searching for an equivalent alternative class at another college with a greater number of still available seats.