This seems to be turning quickly into a "religious" debate, and I usually try to stay out of those.
All I said, in summary, was:
-- Cameras with non-interchangeable lenses, no matter how zoomy, aren't going to be versatile enough for some people.
-- Electronic viewfinders, at any realistically foreseeable pixel count, aren't going to satisfy some people. (Even if detail rendering eventually becomes a non-issue, the issue of extra battery drain may not go away so easily!)
And consequently, those people -- who admittedly may be a small minority of the digital-camera-buying public -- are going to desert prosumer digicams in favor of DSLRs; the market figures say that's exactly what's happening right now. (And let us hope that some of those deserters might be tempted to try an optical-rangefinder digital camera instead!)
Sensors with 10 megapixels, or 12, or 18, or 22, or 37 aren't likely to change anything; they'll show up in DSLRs as well as digicams, and sooner or later people are going to start catching on to the fact that pixel count is just a planned-obsolescence scheme anyway. What's ironic about the yutzes who are dumping their 6mp prosumer cameras because they can now get an 8mp model is that most of them don't do anything more demanding with their images than spit 4x6 prints (1800x1200 pixels) out of an inkjet, or view them on a computer monitor (1024x768 pixels) or on a TV (1920 x 1080 if you've sprung for HDTV; much, much lower if not.) They're getting absolutely no benefit from upping their pixel count; they're just doing it because the salesman told them, "Like, more has just got to be better, ya know?"
But as you say, in the long run the marketplace will tell the story, and in a year or two we'll be able to see whether the techno-geeks continued their shift to DSLRs or were lured back by the appeal of 16:9 prosumer digicams.
Gee, I'm really glad I don't have to care about this; now that I've tried enough cameras to realize that optical RF cameras are what work best for me, I don't have to pay any attention to ANY digicam gossip except about possible successors or competitiors to the Epson R-D 1 (who, what, when, how much, etc.) It's been a tremendous relief!