Our upcoming six flights during March-May PER-ADL/MEL vv are upgradeable as per the email; the trouble is that 16K QFF points x 2, 3 or 4 pax per sector mounts up very quickly! OTOH, our bookings for SYD-DFW return in Oct/Nov are not yet upgradeable. 50K points per pax per sector and J seats on PE sale fares means that temptation is easy to resist anyway!