Make sense, yes or no?
EOS 1D X - Flagship (moderate MP, high FPS, best build, AF and metering)
EOS 3D - Pro FF (high MP, low FPS)
EOS 5D Mark III - Pro FF (moderate MP, moderate FPS, Pro AF and build)
EOS 6D - Semi Pro FF (Smaller brother to 5D series)
EOS 7D Mark II - Pro APS-C (High FPS and large buffer, Pro AF and build)
EOS 8D - The new xxD line. Semi Pro APS-C (Smaller brother to 7D series)
Pretty close to the way I see it. I would guess the "8D" would actually remain as the 70D. They can always call the next generation 70D II, just as they do with the other models. In fact, if you want to split hairs, it would make sense to call the next model a 60D II. That way it would be clear that the 6D and 60D are essentially the same thing, except for the sensor.
I still think the "3D" could just as easily be a 5D HD (High Definition). Same body, same price, different sensor. Again, just quibbling about names, not anything of any importance.
The APS-H boat was sunk last year. I think Canon is only too happy to be rid of that sensor and I don't see it coming back. Sorry.