While I agree with eolesen that organic growth is AA's preferable option right now, I disagree that bringing back any retired/grounded planes is better than new Boeings. The only ex-AA widebodies available right now are the AB6s, and AA spent many millions of dollars grounding those dogs prior to the expirations of their leases. They're maintenance hogs, not all that fuel efficient, have insufficient range for most long-haul flights and too many people remember flight 587 and the Air France A330 that mysteriously disappeared off the coast of S America on its way to Paris. Bringing them back for the short-term would be throwing good money after bad. New 777s wouldn't cost significantly more and would be useful for many years.
AA can get new 777s with 12-18 months notice and with the delays to the 787-9 program, AA could probably get Boeing to help out with financing on favorable terms.
I expect that AA will announce some acceleration of its remaining 777s next week with the quarterly earnings (or loss) release. I also expect AA to announce additional 738 orders within the next six months or so.