Canon is certainly a dominant force in any camera market it gets involved in. Will be interesting to see how well Nikon is faring with it's new mirrorless. Also interesting to see the affect that Canon and Nikon will have ...long term...on the complete mirrorless market, not just Sony.
I think as this mirrorless 'war' wages on, particularly with the addition of mirrorless cameras from the two heavy weights on the retail photography field...Canikon...I predict there might be some casualties. It will be interesting to see what happens and I hope ...as always...that Pentax is not affected in a negative sense.
As a side note, I've read quite a bit about the mirrorless, especially now that Nikon and Canon have entered the fray...but I still am unable to generate any interest in mirrorless. Maybe I've been using SLR/DSLR, mostly Pentax over the past half century and am too embedded with this 'old' technology. I mean I really like my old screw mount Pentaxes, my K mount SLR's and my DSLR's...mostly Pentax. They work so well, the images are so good (camera ability, not mine ) and even though some complain about how the mirrorless are less weight than my DSLR's...I don't notice a big difference...what is it a couple hundred grams or something.
Might be just a question that you can't get an old dog (like me) to learn new tricks.
Whatever it is, I'm not...yet
...swayed by the new mirrorless stuff.