The planes were nearing the end of their useful life; they needed much more maintenance than comparable Boeings; they were fuel hogs and AA felt it had to remove substantial amounts of capacity in the wake of the Great Recession (greatest recession since the Great Depression, right?), The AB6 fleet was the natural choice.

The odds of AA buying any Airbus planes are very low. The odds that AA buys Airbus widebodies are zero.