As everyone may be aware, the recruiting has been top heavy with an over subscription of Captains. In the current recruitemnt they seek to redress this imbalance. The opinion that was expressed to me is that they are looking for young qualifiied FO's, 5000+ hours total time, experience on jets aged in their 30's.
PS. Make sure your logbook is on the level, they are looking a bit closer after a few untidy discoveries.