Qantas will hit OzJet with everything available in it's arsenal to put them out of business, don't worry about that.
In Europe, Branson and Laker showed in landmark legal battles, that the big incumbent carriers are capable of completely unacceptable and illegal dirty tricks.
True and they were successful because they gathered evidence that stood up in court. Cost BA a bit of money in the end.
OzJet will have to do the same. We've already seen how dirty Dixon plays with his own team members (staff) so can't imagine what he'll try with an adversary.
There's going of be plenty of heat in the kitchen if OzJet get up and running but it won't be one sided like the Compass vs AN/TN stoush of the early '90s !