It is hard to see the end game at LCC. The East pilots have betrayed all precepts of honor and have attempted to use brute force to get their way. There is no way that a Duty of Fair Representation would allow part of a union to reorder a seniority list. Just think if this were true, you could always round up the bottom 51% of a seniority list and have them reorder the list to their liking.
USAPA has made promises they can't deliver. The East group seems to have lost all sense of reality and have spun out of control. The West group is now dug in for the duration, I am not sure they could reconcile with the East even if they drop their ridiculous positions.
Unfortunately, this means that in the battle of consolidation, LCC will be a loser. The only thing saving them now is their low cost of labor, especially the pilots. Eventually, the lack of operational integration will catch up with them and their costs will continue to rise. They are not a low cost carrier, just a low wage carrier.
I wish all the luck in the world to both sides. Most of the pilots are just trying to get by with their lives. Unless the East side has a dramatic return to reality, forced by the rank and file, there is not much of a bright future for either side. For their part, the West needs to be ready to bury the hatchet if the East has a change of heart. If Nelson Mandela can forgive being imprisoned and beaten for decades, then the Cactus boys should be able to forgive the Easties. Good luck.