Well, the peeps around Jetstar head office have been saying for about 2 years that when the 787-900 comes then Jetstar will be swapping out a few of the 787-800's for the 900's to enable more long routes. So I expect that the first few will go to Jetstar.
That was the original plan from back in 2008 or so. By my reckoning there's been at least 312+ new plans since then!
Dr Dolittle. Yes, until he was announced as the new CEO for QF international. Then it all made sense.