While I tend to agree with Goat's opinion, I don't believe that it can be practically achieved without causing further disharmony among the troops. The GDOJ has a significant number of internals who are screaming for a chance on the B737 in Aus. Once those numbers settle down only then will we see any possible of direct recruitment into B737 AU positions.
IMHO - external recruitment will be for the B737 NZ, VAI B777 SO and VAA ATR FO positions. I think you'll find the cadets (in particular) will end up on the ATR.