Fuji shows a prototype camera behind glass at PMA, a camera that we don’t know that much about - it is supposed to be a 6×7 folder with rangefinder focusing, manual and aperture priority exposure, and an 80/3.5 lens - and the web response is huge; hundreds of posts on blogs and forums. Look here or here; David Bram links to a short video clip about the camera.
Amateur Photographer has talked to a project manager at Fuji, who claims that they have not yet decided whether to market the camera.
MF rangefinders are an interesting niche, and with Fuji’s history in that segment, it might very well turn out good. Prices for used Mamiya 6’s and Fuji rangefinders seem to hold up well, so there are probably some people out there who would buy the Fuji. If it ever reaches the market.