Aviation is the craziest most dynamic business and anything can and will happen.

I wonder what people said about the future of US legacy airlines when Singapore and Cathay Pacific put forth record orders of the time for widebody jets....

U.S. Legacies aren't without risk and vulnerability but I would be a lot more worried about the future of large European flag carriers. Gulf Airlines on one side, and a recovering U.S. economy on the other don't paint a good picture for them in the next 10 years time.