Once the sharks smell Qantas blood in the water, it won't take very long. My guess is that if Jetstar succeed in sale and leaseback of those parked aircraft it will be on horrific terms that will destroy profitability permanently. Deep discount on sale price and very high monthly charges.
If Qantas succeeds in extricating itself from Hong Kong, they will be very glad they only ordered 18 aircraft and not 118 for Asia.