This begs yet another question: how long will the ETOPS 757s remain in the fleet? I surely hope US isn't planning to draw down their ability to be a competitor on TATL routes where traffic is too thin for an A330. Sure, the 767 has a similar capacity but to replace one 757 for each new A330 that enters re fleet is just a zero-sum game.
Has US articulated any plans about this or their ideas for TATL between now and the first A350s?
Skycubbie