Keep in mind 7D was designed for speed, not so much high ISO. I can see 7D II might have 61pts AF like 5D III and an increase in frame rate(maybe 10-fps). BUT NOT IN HIGH ISO or LOW LIGHT like 5D III, regardless what the new sensor might be.
Just the opposite, IMO.
It's much more likely that we'll see a big step up in image quality than a big step in features.
See my previous post.QuoteCanon will not put 7D II in near 5D III in term of high ISO/LOW LIGHT. 5D III is only 1yr old plus, it still have another 3-4yrs more before we seeing any rumors 5D 4.
The 5DIII needs to differentiate itself much better from both the 6D and the 7DII.
And the only way it can do that is by getting a high-quality ~30MP sensor.
So, I'm actually expecting that the 5DIII will get a replacement sooner than many expect.
Maybe as early as the spring of 2015.
I'll put my 25cents on the line that 7D II will not out perform 5D III in high ISO/low light.
Even Fuji & Sony are not capable to have their crop sensor out performs 5D III FF sensor yet.
Absolutely. Obviously. Size matters!