It won't make any difference what so ever.
1. The contract is done and Parker will not reopen it, unless he gets some real relief in areas the company wants, like Scope. American pilots will be lower paid until the next contract and that is all there is to it.
2. It does not change the nature of bargaining and it won't magically change the situation or increase leverage. APA has been independent long enough that elements of the contract are different from previous ALPA style language. There will be a very steep learning curve for the leadership at Herndon to understand how these changes came about.
3. There will be a new sign on the door, the employees will work for ALPA national not the MEC chair or anyone in Dallas, and there will be constraints on what can and cannot be done. The ALPA Constitution and Bylaws would govern, No contractual change could occur with the Signature of the National President and unless the new MEC opts to vote on the matter of ratification requiring membership ratification,changes to the working agreement and new contracts can be done at he MEC level.
ALPA has good safety and training schools, but they are in effect a McDonalds franchise. The lawyers run things in Herndon. Shortly after ALPA is on the property everyone will figure out that being a Rep is a chump job but being a standing committee chairman means you may only fly one trip a month and get lot's of ALPA flight pay loss and other goodies.
I watched people working towards that coveted National Job, or National Committee chair which effectively means you don't have to fly, that seems to be their career goal.
What is more telling, sickening, and still puzzling is the strong rank and file interest in protecting scope, and ALPA national's lack of foresight in allowing the introduction of the RJ in the first place. Once upon a time Delta thought the RJ would be a great idea and the Delta MEC agreed. So of Delta with ALPA's blessing and ordered a lot of CRJ-200's flown by Comair. After all this was designed to put US Airways out of business, so it was good for Delta Pilots. American was the only airline to hold the line on Scope to the best they could. American had the most restrictive scope language of all the majors and ALPA stood by while the RJ devastated the careers of many mainline pilots and made hollow promises to regional pilots.
It was ALPA's biggest mistake and they will still not own up to it. Now they want all eyes on discount foreign carriers. Who cares about regional pilots? The Frankenstein Monster RJ captain they created will be the guy who will take the B787 job in FLL and go up against the $300K Delta, United and American wide-body guys. What goes around comes around.
ALPA is a purely political animal, and does what is the most expedient depending on what the dominant group wants at the time. They have made some real blunders following that strategy.