Depending on what real-world autofocus performance is like, this could give the current 7D a run for its money the same way the 6D bests the 5DII.
And all y'all complaining about the megapickle count? You're just being silly.
Eighteen megapickles is a great sweet spot for APS-C. The only reason you need more is if you're going to print big -- big enough that your printer will take paper by the three-foot-wide roll and ink by the gallon. And if you're printing that big, there's no point in shooting with APS-C in the first place; you need at least 135 format, if not larger.
All more megapickles gets you with APS-C is slow post-processing.