If we merge with U, that brings the combined domestic fleet to about 820 aircraft. TA allows up to 75% of that for RJ's = 615 RJ's. Add ANOTHER 400 aircraft of any size outsourced as code-share, NOT INCLUDING Alaska which would be unrestricted.
These numbers will come down as the combined AA/U likely shrinks (ALL deliveries through 2018 have been announced as replacement only and most likely more will go then arrive, i.e., S80, 757/767-200 elimination), but you can see from a career standpoint, an AA pilots (present or future) is dead as a doornail for many years. It's a 6-year deal with option to section 6 at 4 years, but AMR successfully stalled for 5 years (and could have gone a lot more), so in effect, it's a 10-15 year deal or basically the last contract for 90% of AA pilots.