Traditionally upgrade to JFO was either on Airbus or 777. Lately 747 has been included, personal preferences are not considered, you have to take what they offer you. Note that CX als employs SFO on the 777. Every pilot in CX has generally to fly pax and freight. Be aware that the 747-4/8 fleet will soon be a pure freighter fleet, which are both flown by the same crew. On the 777 the ratio pax to freight a/c will likely be around 5:1.
My guess would be that you are more likely to be placed on the 777 ( either right away or as JFO) or the Bus, simply because of higher order numbers on that side.
Rumors about orders of a 748 pax version ( or A380) are wandering around, no idea what's behind it.
Last edited by 711; 8th Mar 2012 at 15:27.