If Canon just matches Sony's offering with the addition of the 70D sensor, they might have a good chance of competing against it and I'd probably be sold to the most expansive one. I know that if they match the NEX-6, I might just buy it, even though I had no intention of buying a mirrorless body 6 months ago, even less a second one!
Looking forward to Sony - hopefully! - announcing their rumored full-frame mirrorless system camera/s soon.
I just might get what I want ... a
* highly capable
* very compact
mirrorless system camera. Along with a couple of good and compact AF-lenses ["Zeiss" branded and hopefully also designed by them].
If true ... it'll be a good lesson for Canon and bad news for their underwhelming EOS-M line. :-)
Are you prepared to pay $3k for the body ?