Boeing currently has an awkward gap between the 737 and the widebodies that was previously filled by the 757 - the 737 Max 10 (which still isn't certified!) onl

Boeing currently has an awkward gap between the 737 and the widebodies that was previously filled by the 757 - the 737 Max 10 (which still isn't certified!) only has about two thirds of the range of the A321XLR, and a slightly lower passenger capacity. Airlines that currently have 757 fleets and who need that range are going for Airbus instead, and Boeing just doesn't have an answer for it. So while, yes, any new Boeing design is likely to be fly by wire and composite and everything, it also seems likely that it's going to try to fit that market. The 737 Max 7, the smallest of the Max series, is longer than the 737-200, the stretched version of the original design. A brand new design is going to be able to ignore that market (which basically doesn't exist any more, the Max 7 only has a handful of orders) and scale upwards to also be a 757 replacement. But it's also going to have basically no commonality with the 737, so it's going to have to genuinely be better than the Airbus product because existing Boeing customers aren't going to benefit from being able to move existing pilots to it without retraining or benefit from common maintenance plans and so on. It obviously should be better - the A320 program started over 40 years ago, it's not that much newer than the 737 - but given Boeing's myriad series of failures in recent years and how painful the 787 program was, it's not impossible that they'll fuck this up entirely.