I have dealt with mediation at another company in the past, and the offers are not to be discussed outside of the committee. not IBT, federal.
Either way it's irrelevant if every FO leaves for better money, BUSINESS travel, not some bs pay for pain that's irrelevant because the won't travel you that long with gateway anyway, better healthcare and retirement.
Now management is jumping of the ship or trying to anyway, and not for a legacy carrier. What does that tell you?
2 weeks maybe 4. Good luck