As already said, Joyce has got mainline where he wants.
If you can get a 2.5 rise than take it, as he wants a full B scale system. Aka Jetstar wages on mainline.
Surprised it hasn't happened already. Cathay are up to D or something. EK are nothing what they use to be, and the golden singapore contracts of the past are just that. In the past.
Joyce knows he could get jetstar crew tomorrow to fly the 380 for 150K no worries. They would be lining up.
Have no doubt he would shut down mainline international to rebrand and repaint qantas in years to come if thought that would help.