Thom from Sans Mirror speculate on the mirrorless market in 2019. He gives us a manufacturer by manufacturer play:
Clearly, all the camera makers—other than Pentax, who’s still wandering around in the woods somewhere seeing if trees make noises when they fall—are going to be executing significantly in the mirrorless realm in the future. We’re now clearly into the DSLR-to-mirrorless transition period. How long that transition will take depends upon how fast the camera makers move.
This is what I’m predicting too: DSLR is down, mirrorless is up. It is a technological move and while it will not fundamentally change the way we use cameras, it will definitely shape its evolution.