There is no past experience to base judgement on re A.J. as they have only recently begun operating with contract crew although have been flying under A j logo since Jan with seconded crew from ANA.
It is a pertinent question however and would be best put to former crews from WACS, another low cost subsiduary set up by ANA in 94 or 95 and wound up in circumstances described by some as leaving a very bad taste in the mouth. I don not recall if any FO's were upgraded in WACS however parc have said to candidates that upgrades will happen in A.J. GREAT !!! Now how about putting that in the contract.
Answer - silence