There are KA guys interested in leaving the most fragrantless of harbours and jetstar int would fit the bill. But not many at this stage would give up a command for a command slot in jstar only to be busted back to effoh in 3 years time. If this is sorted out then they will come.
There are loads of guys out west in the sand who would ditch the aye rabs and thier tinpot outfits to work back in oz with jetstar.
Build it and they will come.