As far as Mesaba's agreement goes, I have heard the following (I don't know if anything has been final finalized yet...):
1) I believe the 30 month employment clause is there, which would already cover the vast majority of XJ employees.
2) You must be a Captain (no time limit, it could even be just for 1 day).
3) Starting in the beginning of next year, the flow up is limited to just 3 a month. Eventually it works its way up to (I think) 10 a month.
4) Flow downs can never be more than the amount which have flowed up.
The bigger question is will XJ Captains be able to apply to NWA outside of the flow agreement? I hear NWA will start hiring next month or so.