@Tcapp- As a wedding photographer, a mirrorless probably isn't of much use to you. These camera's are designed for street photographers and people who want DSLR image quality without the bulk. It's just another tool, no more, no less.
Sure, I understand that. That is a very very small niche. But what the OP is talking about is totally doing away with the current DSLR design and having everything be mirrorless. No more mirrors in anything. I don't see the point in that. He said that the 1dx is the last mirrored camera he will ever buy. Unless he is specifically an undercover street photographer, it doesn't make sense to me.
I wasn’t suggesting “Doing away” with mirrored, reflex-based systems by next Wednesday. I promise.

I was resolute, and still am, that my 1DX will be my last, mirrored, sub-medium format flagship (wording chosen carefully there)

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My original post was a tongue-in-cheek musing (hence the “calf-on-the-conveyer-belt” reference) as to when Canon may feel the heat to move decisively on replacing the "mirrorbox" in a Full frame body in the face of emerging competition, rag-tag as they may be now.
Don’t get me wrong, “mirrorbox” is a reliable platform, last century technology it may be. It works. But this in no way should preclude us or Canon from moving the ball further down the line; and without healthy competition and criticism there will be no innovation. I don’t’ resent mirrorbox’s current existence. But I do hope for its accelerated exit.
I have no doubt that when SLR’s made their debut, they were derided by good many old pro’s. I can hear them saying “you can’t see the image when the mirror is up!”; “what’s that abominable slap sound!”; “A curtain shutter! How tacky!”; “Too many moving parts”. I think some of the righteous defense of the SLR mirrorbox I saw here, (and some of those indignant posts have magically disappeared as someone else noted earlier) is no different from those early push-backs to change.
I use “mirrorless” here as a loose term encompassing a motley crew of possibilities that may eventually supplant the current system that “moves the mirror out of the way to take a shot”. I don’t mean a single approach…clearly this in part involves autofocus related issues, EVF and alternatives (current, pipeline, or R&D stage)…I don’t know what the final configuration or the future will be.
But one thing is clear.
To be intentionally cheesy, there is “a great disturbance in the Force”
Evidence… Nikon 1, Canon M, Sony, Fuji, and an assorted group of offerings with varying features… clearly there is “directional” movement.
The offerings may be substandard during these early stages and they may not hit all the buttons and check all the boxes, but we are seeing them evolve and they will eventually hit the viable combination. So Canon, despite the virtuous admonishments here, will also move ….they will have to.
When mirrorless does get established (and it will), and becomes the new standard bearer (and it will be), I am certain all the righteous naysayers here will shamelessly jump ship to mirrorless and extoll its virtue and defend its superiority as they do for the mirrored systems now. I will welcome that with a wink
