Leica will loose many, many loyal customers if they stop supporting the R system. The M8 is great, but it is not a DSLR. With 3 R bodies and 6 R lenses I would be looking at Nikon as an alternative upgrade, and I have been dedicated to Leica cameras since 1982.
Wrong tense. They've already lost
many hitherto-loyal customers. Over the years I've owned seven Leitz bodies, thirteen lenses, a projector and all kinds of ancillary equipment. I've put up with their arrogance, unacknowledged emails, accusations ("you have mistreated this equipment!" - yes, I actually used it instead of storing it in a trophy cabinet). When they hit the snooze button over digital, that was the last straw. I now use my R lenses on a Canon, use my M bodies only for my Super Angulon - still a terrific lens - and reflect on the days when the premium Leica asked was commensurate (usually) with their quality advantage. I've lost count of the number of times people have seen my 400 Telyt mounted on my Canon and said something like, "I used to use that. Great lens (which it is). But I switched to Canon/Nikon/Pentax years ago."
I'm afraid this latest ditching of the loyal crew on a desert island has become par for the Leica course and will do nothing to reverse the efflux of their customer base.