whatever we are wishing for and wanting will be determined by the market place.All of is possible at a price!
The modern lenses are wonders of computer design and manufacturing. The best of them outperforms film,even hig resloution film and certainly the sensors that are available today. How many of us shot at the edge of technology? In my case. I use medium speed films (400 asa) for 90% of the pictures I take and just about every lens I own is better than what I relly need.
For years I did medium and large format photography, mainly industrial photography. If I had to go back to this today, i would aim for the largest possible sensor, the highest resolution and all the gizmo's and gadgets that would give me a commercial advantage in a highly competitive market.
However, I quit all of that because it was not enjoyable anymore. Every shot was directed by some-one else or controlled down to felt marker outline on the ground glass!
For the last 20 years I have a true "amateur" - meaning. Doing it for the love of it!
The technology is important to master, but only to the point that you need - beyound that it becomes meaningless.
Digital at this stage only interest me as a function of this style of shooting. IF I could get a faster 'confirmation" via a digital set up and the learning curve was designed by an actual user, rather than a group of people who has never seen a
master print by Ansel Adams, Eugeen Smith, Jean Loup Sieff etc. I would switch in a heart beat. Neither the RD1 or the M8 met these criterias. The RD1 did have a smallish sensor and to pull a 16x20 in black/white would have been difficult, if not impossible. The M8 did adress that with the thinner IR filter and inherent higher resolution, but it is still not there. A 16 Mp,dedicated M8, using the same technology could do it. Theoretically, if you "colored" all the pixels in a M8 to only respond in graytones you should get 3x 10 MP. In real life 1/2 of that would be possible (at least for now).
If I wanted a snap shot Digital, it would be the Ricoh GRD. My wife Tuulikki has one and it is astounding in its quality. It has a fixed 28mm equivalent lens and as it has taken her handling for quite a while now, very well built. It does not have an optical zoom or excessive menu choices. You have some manual control, but can also leave it on A if you want.
Now, a small camera like that with a M-mount on it and limited range of frame lines in an optical finder and a price tag of $1000 would be attractive. One of the Golden Rules of design is the KISS rule "Keep It Simple Stupid" and I think we have lost that. There will always be a segement who wants and need the all the bells and whistles and most of the major players will be happy to supply that at a price.