Historically-speaking, that kind of thing has never happened in recent history during a seniority integration with a non-bankrupt carrier. Everyone not on property on the date of constructive notice will end up blended in at the bottom. Just the way things like this go...
It wouldn't surprise me if something like this is what SWAPA *OPENED* with in negotiations last month, but I would be highly surprised if they went into arbitration with that as their opener - you'd polarize all 3 arbitrators, 2 of which have established, recent arbitration history, one of them with the DAL/NWA arbitration (where up to 25% money gains by one group were largely ignored in the final solution) and one with RAH/F9 where the only pilots who got stapled were pilots NOT ACTIVELY FLYING (Midwest folks), even with the bankrupt Frontier, their F/O's weren't wholesale stapled like that. It's not smart to pi$$ off the arbitrator, and I doubt SWAPA would go in asking for that (see Nicolau for a prime example of what happens when you pi$$ off the arbitrator).
Not trying to argue, just stating that if you're expecting a NEGOTIATED settlement to go like you stated above (where pilots hired AFTER the announcement get placed senior to pilots on property at AAI 4-5 years), you're going to be highly disappointed. Our Merger Committee will never go for it, therefore it will never see vote at either group and it'll end up in arbitration.
Again, you may choose to believe that some type of doomsday scenario exists if it doesn't go your way, but our pilots simply don't. I thought we had moved past the threats and intimidation tactics that obviously aren't working...