I think Boeing can only sell the 767-300ER by giving a hefty discount. I would imagine the buyer being United as they seem now to buy discounted old type frames, looking more one CAPEX than running cost.
I don't think that this means that Boeing has got such an order - rather, Boeing hopes to win it.
I suspect that what happens is that UA, seeing that Boeing talks about the NMA/797 but is not committing to launch it, has just issued a RFP to see how Boeing would answer. Unable to offer the NMA/797 in the required time frame if at all, Boeing may intend to offer new 767s at a firesale price, and questions its suppliers to get the delivery timeline right...
Last Edit: Oct 20, 2017 18:31:52 GMT 1 by philidor