It's tragic that the prior management regime spent too much effort on the MAX expansion of 737 and started so late on the 757 replacement NMA project, it was 2015 when the concept was first explored, but MAX fiasco and WuhanCoronaVirus era torpedoed the program. I'd certainly hope the company didn't lose the bits of work done a decade ago, but it'll take a lot to spin up the program again, have to get the best aerospace design engineers moved over, and hire a lot of staff engineers to implement the design.