"Jetstar is going to be such an important part of Qantas … it will be just as important as the main line."
I would guess it has a real good chance of being the main line. Once Jetstar has done its job of chipping away at union entitlements and expanding the Qantas reach into a low cost airline while still appealing to the business and first class pax, then the Qantas name will be transferred over to swallow Jetstar and Qantas will have achieved indirectly what it couldn't achieve by a frontal assault.