Actually, I've got to say that I doubt Boeing will ever make the 737-1000, or the 757-100, for that matter.
According to what I've been hearing, when the 737NG airplanes begin to show their age, Boeing is going to come up with an all-new design that will not only replace the 737, but also the 757. Because it is way too early, nothing is really available about this aircraft, but strong speculation has it that it will incorporate the fuselage of the late 7J7. In case you never heard of it, this aircraft was to have a fuselage that was kind of a "twin-aisle narrowbody" aircraft. Economy configuration would be 2-2-2.
Honor the warriors, not the war.