The bottom line is the rank and file, if hosed bad enough, will beat a path to the door, hence the proliferation of advisors to figure out that "delicate" balance - it's quite evident those running the show at Centrepork haven't a clue and must depend on outside advice - this is referred to as "market".
I suggested, years ago, that the A&Ps be let go and replaced with Tool & Diemakers throughout as we were being called out to do rather simple jobs like drilling and reaming holes. Since all we held were drivers' licenses, it made sense to eliminate the license requirement - that didn't go over very well. We still run reamers and drills for AO - case in point, the Boeing reamer kit for the 737 tail bushings, designed for mechanics to use but not at AA. That alone would have reduced AA's outlays re: compensation, however.
In short, I don't believe it'll be as bad as what you're representing but that's not to say it'll be pleasant. A frozen pension with the company still administering it will allow many to retire if they wish (without the severe reductions re: a PBGC takeover) but along with that I'd expect an elimination of the early-retirement medical coverage, which is wrongly referred to simply as retiree medical - it's bridge insurance, ten years max. We have to remember the more they take away the less there is to hold over our heads at a later date exactly as has been done this time, the fear being spread about how much we'd supposedly lose.
Remember also this is a "me too" type of filing. The term "strategic" was used - the intent is to get on equal footing with AA's peer group. Considering we are nearly the lowest in compensation of that group, pay may not be as great an issue as some believe