QF's are around 285T, so at MTOW they can carry 284T of payload and fuel.
285T is the basic weight - when you add all the catering/service equipment, you're up to 305T so payload & fuel would be about 264T. Depending on winds/destination weather, it's looking like the pax load will be limited to around 300.
Being so range critical, the new availability of Cat II ILS systems won't be of much help as they will be unable to carry sufficient fuel for a full alternate.