My only question here is not about the 70D itself, but about the (possible) 7Dii.
Not much room left between the 70D and the 6D/5Diii for the 7Dii ... unless the 7Dii would be something like a cropped 5Diii (around the same price as well though)
The only way I can see a 7DII in Canon's future is if it is targeted more at pros than consumers.
This means a sensor optimized for high ISO (rather than more megapixels), really fast fame rate (10 fps?), better AF system (more than 19 AF points), etc..
Such a camera will surely be expensive, as it won't be targeted as consumers anymore.
A $2000 price tag won't surprise me one bit.