The fundamental issue, and the reason why Leica alone is in this digital rangefinder market, is that building a digital rangefinder to use existing LTM and M-Bayonet lenses is freekin' HARD if you're going to get the kind of quality these lenses were intended to deliver. It is FAR more sensible—more doable, less expensive, easier to develop, etc—to design a new body and a new lens line than to try to make a compatible body for the existing lens line. Any attempt to build an opto-mechanical RF rather than an EVF/LCD based new body/lens lens is going to be shot down on the basis of development cost and perceived marketability by any company other than Leica.
If you don't care whether what you buy is a rangefinder, and all you're looking for is image quality, there are plenty of other perfectly good choices available at much lower prices.
Leica is never going to have any competition for a digital rangefinder compatible with existing lenses. Those that want a digital rangefinder, well, suck it up and buy the Leica. Warts and all, it is now, has been, and will be the only game in town. Aside from the short-lived Epson R-D1 (built in very small numbers for a short period of time based on existing Cosina body parts), no one else has even attempted. Or will; my understanding is that Epson lost money on every one of those cameras, despite how expensive they were.
G