Did not know that about either the 767s or the MD-11 (for FedEx).
If the line ramps up, I'd still be more inclined to think freight carriers than pax. Rumors of used 767s for United fit well as interim gap-filler, with infrastructure in place, instead of a long-term investment beyond the MoM.
Still...if Boeing gave rock-bottom prices to prevent a break in production, or help justify a new line...or as a means to "punish" Airbus (by luring customers away).....