I've always thought that an easy way of allowing upgrading using points would be for Aeroplan to sell upgrade certs for points: ie. create an u/g cert award. With the reduced number of SWUs distributed this year I sort of expected to see that happen. Since there's already a mechanism in place for upgrading using certs (SE/E/P status, UK *A upgrades, etc.) it wouldn't mean any changes to their computer system.