All that is happening is that QF are beginning to utilise spare capacity; there is no actual growth in mainline except for a small amount on the A330.
Nevertheless the Group is profitable, mainly from the Domestic arms of both QF and JQ. Four or five years ago, before J* Intl, the QF A330's were pulling in a motza on the PER route. I believe the same is now happening again. Lets hope someone doesn't get another incredible brainwave; like sending them to a LCC of dubious value like J* Intl and replacing them with a totally unsuitable and decrepit aircraft like the 747 classic.
How much did that exercise cost QF I wonder?