Canon is well aware of the areas they're falling behind. I hope that, in normal Canon fashion, they've waited to implement these new technologies until they have them "perfected" in their eyes. I honestly think Canon is pretty annoyed that 4K is expected from their current generation of sensors - which are honestly terrible options for 4K. When you look at their cinema line with their 4K sensors we're seeing some of the most beautiful images off of them, so we know that Canon can create a terrific 4K Dual-Pixel sensor that shoots C-log. The benefits to a sensor with a faster readout also transfer over to photography as well. We get better potential electronic shutter performance, less noise, potential for higher dynamic range, on-sensor AF performance, the list goes on.
I really look forward to the next M5 and a replacement for the 7D Mark II....if they choose to blend it with the 80D replacement, that's fine with me. As long as it becomes a true 7D Mark II replacement.