With QF Crews costing double the EK crews it will be a wet lease or a contract position.
EK do not throw money away.
They definitely wouldn't be half the price, even if they were cheaper when the Australian dollar drops to prices before the gfc it will even out. I know for lame's at emirates when you add up everything in the package like housing, school, medical etc, it costs emirates about $10k less than a qantas lame but when the Australian dollar drops to below $0.90 to the us dollar it will even out.