As this is a rumour network - i'll pass on what the TL refueller told me the other day-
JQ to pick up a QF 332 in November to possibly facilitate Southern Europe flights - I take no responsability for the veracity of this - see the refueler and ask him yourself.
On another note I agree with Keg.
787s should be introduced by QF to replace the 76 and 734.
The upshot of this would be all 330s to JQ and subsequently the 380s.