Possibly. But that version doesn't jive with public statements. Previous to American's press release, Boeing's leadership was strictly avoiding mentioning an u

Possibly. But that version doesn't jive with public statements. Previous to American's press release, Boeing's leadership was strictly avoiding mentioning an up-engined 737. And was fairly reliably mentioning a clean sheet redesign program. I can't think of a reason for doing that, if they in fact had such a program. It would make sense to be trumpeting it loudly to anyone and everyone.