ahsanford said:
...when's the last time a product line got refreshed faster than it did before? I'm hard pressed to think of when that was...
...yes, the 7D3 could absolutely come next year, but it would be rather un-Canon-like to do so. If it did, one would logically think the D500 + 200-500 combo was indeed doing market share damage to Canon such that it felt compelled to shake things up with their pipeline...
I think the 7D and 7D II timeline is misleading. There were a couple of unique factors from what I can tell. First, Nikon all but abandoned the market at the time, leaving the 7D with no competition. Second, there is some evidence that Canon was undertaking major changes in its manufacturing that may have delayed development of the 7DII. The firmware release of the 7D 1/2 was certainly unusual and kind of screws up any timeline for the 7D series.
Still, even with all that factored in, the refresh does seem to be coming sooner than expected (if the rumor is correct). I don't doubt for a minute that the D500 may have something to do with that -- although in terms of actual performance, the 7DII holds its own against the newer D500. (The sample photograph someone posted above that was shot with a D500 doesn't show anything that couldn't be done with a 7DII)
I would add that I think Canon did make a couple of errors with the 7DII by not including a full touch screen, full wifi and multiple f8 focus points. The fact that they released the wifi card is pretty strong evidence that they know they make a mistake on that front.
Finally, perception can be everything and even though the 7DII gives up very little ground to the D500, that is not what many people think. So I agree Canon may be feeling some competitive pressure.
If they release the 7DIII with a 500mm f5.6 "L" zoom that sells for $3,000 or less they will recapture any lost ground and then some. I personally hope they steer away from a cheap "consumer" zoom like Nikon's.