My belief is that Virgin will continue to grow in the right direction with the leadership of JB. Their fleet wil expand, may include a regional prop (Q400 or ATR). Given JB was at Qantas, he should know how much of a money making cow the Q400 is, it would be no brainer for him to not consider it replacing the E-jets.
Rex will continue to bleed pilots and struggle to staff their planes due to their poor pay and condition. Their cadets scheme will eventually dry up with the introduction of 1500 hours by CASA, and thus cries foul! More experienced crews will move on to better paying jobs from Virgin, Tiger and Jetstar.
Qantaslink, like Rex but could be in potential big trouble IF virgin decided to get some 400s to play and offer a CAREER progression into their 737s, A330 or the E-jets. I would not be surprise if majority of the pilot will jump ship.
Jetstar will continue to grow while Qantas will continue to shrink. They will only offer NZ or Singapore based for future employees. A few of their recent employed will realise how s*** of the deal they got but have no real way out until their contracts finish. Qantas' will loose business passenger to Virgin due to their incompetent management and awful new buisness class offering. AJ will further try to cut cost wherever he can except his paycheck. Employee become less engaged (Don't know whether that's still possible) than previously.
This of course is based on