Ok you must have a really short memory because AMR has been saying they are going to divest/spin off Eagle for over 10 years, and it hasnt happened yet. Does that mean it wont? of course not, but even if they do the Eagle pilots are protected. Those planes that go to other airlines will also take the Eagle pilots to fly them. They will stay with the planes for 5 years, and then return to Eagle. The grievance agreement is pretty rock solid and I think the MEC did a great job with it.
You can also look at the so called "math" that someone did earlier about how long it would take to get called up to AA, and you would be foolish to consider that. The verbiage says that a MINIMUM of 50% of the preferential hiring group/class, and then a MINIMUM of 35% of the rest of the seniority list in order. Also there is only a 10-15% acceptance rate for the recalls at American, so it very well could move faster than you think. There is a very good chance that they will pull from Eagle as it is cheaper to put them right into training rather than travel, sim, and medical test costs for those off the street. It will still take several years, but NO ONE knows what will happen and anyone who says they do has the wool pulled so far over their eyes they will suffocate on it.