From DPReview early preview:
"The focusing speed of the updated hybrid phase and contrast-detect design remains unchanged, which unfortunately means that it still lags behind current mirrorless cameras from Sony, Olympus and Panasonic."
Well done Canon for the LACK of progress in this critical department. Wow! I am totally floored.
I have to admit it puzzles me a little. It doesn't look like the sensor is much of an advance on the 650D. Assuming the sensor in the 100D and 700D are the same, that begs the question why anyone would upgrade to a 700D.
When looking at the Canon range, I like the EOS M form factor, but I won't be pulling the trigger until there is a significant advance in sensor technology. For now, I'll suck it up and lug the 7D.