253 already have AA numbers and would need new-hire classes to move. The top hundred or so are mixed among the junior 3-400 and the rest at at the very bottom. The 846 would be offered new-hire positions if their grievance award survives the chapter 11 process. Many of the 253 might pass and stay at AE depending on age and financials.

As I said before, even AMR is open to merger and most believe this U marriage will happen. Most likely, Horton will be the One World messiah and the other bandits will have likely collected their booty and moved on, so it would be Parker presiding over the marriage of Jack the Ripper and Lizzy Bordon. The combination of the two will have the least motivated workforce in the history if the airline industry, but perhaps to some that isn't important. Stand alone or hooked up to U, either way I have difficulty seeing AA surviving this BK with any optimism.

I'd love to hear a believable explanation myself of how this will all work, but so far that hasn't materialized.