Seems strange to me that Canon hasn't done more with their current mirrorless system. If you look at what Fuji are doing with a crop sensor, but pro level lenses and ergonomics. The problem with Canon mirrorless isn't that the sensor is too small (in fact, aps might turn out to be the optimum sensor size for mirror less), it's that they've made no effort to produce a system with fast lenses and pro level bodies.
I think they are (rightfully) hesitant to do that, as it's their golden goose. The EOS-M was them dipping their toes in the water and "beta testing" the EF-M mount, which I think could become the future native mount for all APS-C.
Canon is a big enough company, with a loyal enough user base, that they don't need to do what Fuji is doing right now. They can cede that market to the Fuji and the Sony, because once the market settles down and Fuji and Sony and Samsung have found the "magic formula" of what types of cameras people want, Canon can put their full weight behind doing the same thing except with a Canon nameplate, and full EF/EF-S compatibility, and then just steamroll the competition.
That is to say, Canon's strategy is not to tire themselves out with a flurry of punches early, but wait and play defensively until their opponents tire, saving their money and learning their opponents weaknesses, and when the time is right, go for the knockout blow.
It is just a market timing strategy, they are not neglecting the market.
I don't think that's a sensible strategy. I sold my canon gear and moved to Fuji, as I didn't want to wait for years for Canon to make a move, and Fuji have rewarded my leap of faith with great cameras like the XT1 and lenses like the 56mm 1.2. Many others are jumping ship now and if Canon leave it too long, it might be too late for them to join the party. Just look what happened to Kodak!