"Mirrorless" ?; my smartphone is a "mirrorless"; so one could only imagine that it's only meant to the larger (FX/DX) side. Personally, for having tested for an extended period Leica SL; and for a shorter period of time one of the Sony Alpha's; I really dont see any element which could me push to a mirrorless high-end camera (yes, I know the arguments in favour of..). I'm surprised that so many people believe that the critical path to further success and profit is the "mirrorless" way. Yes, they should be much cheaper to produce.
Another remark: how is the profit stream distributed over the model range of cameras (from cheap to expensive) ?; and/or to what extent are the cheaper cameras subsidising the higher end cameras? And if the latter proves to be true, this could be a major problem for survival.
My guess, based on the surgical removal of "cheap" cameras from Nikon's future, is that
the money is in their better cameras.
Just think about it, on photography forums, worldwide, you seldom see ANYone using the cheap cameras ... at the lowest they're using the D7100 and above [mostly D2/300, D71/7200, D500, D7/750, D8/810(E), D3(s/x)/4(s)/5].
I can't even think of a single post made, anywhere, by any Nikon user deploying a lower-end camera than a D7100/D300 to share their imagery.
In fine, the "consumer base" who would target low-end camera-toys are only using FB (texting/sharing with friends) ...
they don't really consider themselves "photographers" ... they
don't want to trouble themselves with "processing" images ... they just want to take some pictures (to be shared in real-time) ... and as such they are simply using their cell phones, which already come equipped with nice low-end/mid-level cameras, which serve their purpose perfectly.