+1 Don ! I wouldn't have said it better.
Mirrorless as an image acquisition technology, not as a form factor, is definitely the future evolution of our current DSLR. The major roadblocks at the moment are the EVF quality and the AF, but I am confident that improvements of the dual pixel, the OLED and the overall video technologies will clear the way.
Another reason why the evolution towards mirrorless is bound to happen is the associated decrease in manufacturing and quality control costs that will result from the simpler overall camera structure (i.e. less components). This will definitely improve the profit margins for the manufacturers, an argument which is always music to the hears of big corporate managements!
In this end, it is this factor which may drive the transition from DSLR to "DSLM" rather than customer experience or any other marketting argument (although phasing out AFMA will be a very nice evolution step for the users).
+1 ... mirrorless still has some way to go before it replaces the current DSLRs.
Canon has the highest market share and has the most to lose if a product goes wrong, so I'm guessing that Canon is simply playing the waiting game (if it ain't broke, don't fix it) till the mirrorless market matures and it will come out with its own mirrorless which will blow the pretenders out of the water. I also expect that it will be perfectly usable with the EF lenses, so yes, mirrorless for the technological improvements, smaller form factor be damned.
It's a pity that people end up whinging on internet forums wanting their perfect (mirrorless) camera from Canon, NOW! The amount of entitlement shown in these forums is staggering.