One of Boeing’s most successful freight aircraft (and a popular passenger aircraft too) is the Boeing 767. Boeing has been hard at work to design a new generation aircraft to fill in what is “the middle of the market”. The middle of the market is a special unserved area between short-haul small aircraft like the popular Boeing 737 and the long haul big aircraft like the Boeing 777 and 747.
Boeing’s rival Airbus has started to fill this market with two aircraft: the Airbus A321XLR for the bottom half and the Airbus A330-800neo for the top half of the market, grabbing the eyes of many potential Boeing customers.
Thus, Boeing needs an aircraft sooner rather than later, so why not just update an aircraft they have on-site? Boeing could easily update the design with modern improvements and reopen orders for the 767X passenger variant.
Collected and summarized from the source below by Minh Pham https://simpleflying.com/why-boeing-should-build-the-767x/?utm_source=email