Canon has unveiled the successor to the EOS M, the EOS M2, but there’s no indication yet (says CanonRumors) that it will be sold in the Americas or Europe.
According to PetaPixel, the biggest shortcoming of the EOS M has been addressed: autofocus is much improved thanks to a better processor. Otherwise the M2 seems very much like its predecessor, with the same body design and 18 megapixel APS-C image sensor. The camera also gains built-in Wi-Fi.
If the M2 does appear, I’m guessing my book Canon EOS M: From Snapshots to Great Shots will still be a useful resource.
By the way, the EOS M is still heavily discounted: Amazon has it (with 22mm lens) for just $329. The image quality really is superb—here’s a link to a set of photos I’ve shot using the EOS M.