I think with economies of scale and the ability to shift airframes between entities as required as per Jetstar and Network, coupled with the ULA cargo loading, reduced ground handling costs and crews being able to do the load calculations I think the 737 days in Qantas colours might unfortunately me numbered ( as a tear drops from my eye!)
I think the only real question will be does short haul mainline survive or does the domestic fleet become “link” with the associated flying done under an entity, leaving long haul the only mainline brand ??