I cam across this post at BRAND NEW pointing out the rebranding of American Airlines. I have to agree this is great work!
The design manages to retain the eagle, the color combination, the letter A, and yet combined and reduced them all down to a minimal and almost abstract level.
I cannot call myself a fan, based on my only 1 or 2 experiences back in early 2000. But if American Airlines want to convey a sense of optimism going forward, I think they have done just that.