TWA, great talking to you too
GodBless, Boeing makes decisions on customer prefences, and customers want as much commonality as possible. Again, there is nothing "old" about the 767 design, and just because it does not have FBW, does not make it a "dated" design. Also, the new cockpit is already an option on the 757, but no airline has ordered it with it yet. Anyway, really if you look at it GodBless, not much has changed since then and the 767 has been quietly, steadily upgraded over the course of those 20 years.