What I would like is a D1X priced between $500 and $800.
I am not sure that is unrealistic in a year or two. The big cost today seems to be the sensor. Its price should drop as the development costs and line tooling costs are amortized and as yields go up. Most of the rest of the camera is also electronic with parts shared with the F-5 and F-100; the costs of those parts should drop for similar reasons. The only precison mechanical/optical parts to the camera body are the shutter, mirror and mirror mechanism, the lens mount, and the prism. There is no film transport mechanism.
Of course Nikon and Canon, and any other manufacturer who enters the high end digital field, can set their prices to whatever the traffic will bear. The next few years will be "interesting".