It's clear that Canon will not come out with any half decent EF-S or EF-M lenses. I have been in the EF-S ecosystem for over 5 years. Other than the flimsy and plasticy 17-55, they have came up with NOTHING. I just don't see how they can replicate the lens line-up that Fuji has on the EF-S or the EF-M side at the rate Fuji have churn out these excellent lenses.
If you are happy with your 2lb 1D Mk X, good for you. If you are into small cameras with quality small lenses, Canon will not go there! Canon have made it very clear based on their product offering in the last 5 years.
And, Fuji would be stupid to go FF. FF is from the days of films. In the digital age, there's no reason why we have be nostalgic about sensor sizes. There is 0 indication that Fuji will go FF, and if any indication they have reinforced their commitment to the X-mount by releasing amazing lenses at a rate that we have never seen before from any other manufacturer.
http://www.fujirumors.com/x-pro2-will-feature-aps-c-sensor-trusted-source/
DSLR will remain in the realm of Pros. If anything, Mirrorless cameras will be killed the day that quality lenses are available for the iPhone, and the iPhone sensor is able to achieve as low noise as a APS-C camera of today (won't take more than a few years if Moores Law has it's way).
http://seek4news.com/news/apple-patent-reveals-magnetic-iphone-camera-lenses-detachable-back
FYI, I did buy a EOS-M with both the lenses (22mm and the kit). Battery, AF and control is just very sub-par. I had to go back to my 7D in a week. I actually bought a 50mm 1.4 for it's light weight and hope to use it with the SL1/2 down the road. I then picked up the SL1 in a store, looked through the tiny viewfinder, along with the inability to calibrate the AF. I was disgusted.
Eventually I was introduced to the Fuji XT-1. I later picked it up and side by side compared it with the SL1. It's about the same weight, but the XT-1 gives you every premium feature that you'd dream of from a DSLR under $2000. AF is always spot on, even at 1.4 aperture. The EVF is even larger than that of the 5D mk3. And the glass line-up is exactly what I have wanted for many many years from Canon EF-S, which they have never made. Not to mention their track record of continual improvement. Willingness to issue FW upgrade to older cameras to match up to the performance of their newest flagship. Not holding back in fear of internal cannibalization. They listen to their user and try to provide the best solution. Unlike Canon who holds back every FW feature in attempt to gouge you to buy their high-end models (Focus calibration for the Rebel comes to mind).
For those that have waited for years for Canon to produce something smaller, cheaper but yet with excellent optics, the wait is over. Fuji X-mount (along with M4/3 actually) is the answer.