I tiny compact FF camera is an excellent idea; Sony are already heading that way with the new soon to be launched A7C.
May be a slightly larger M6 style body to accommodate the bigger sensor, a twisty tilt screen would be nice and with a hot shoe that could take an optional EVF like the M6 that way Canon could still cash in on accessory sales and users would at least have an option of an EVF.
I have always admired the streamline styling of the M6. I’ve never used a plug-on EVF but surely better than no option at all, or even a popup EVF rather than a popup flash.
The last time I used my M5 was last year on a family holiday in Norway before all this Covid madness. I used the EVF for most of my outdoor shots as it was simply too bright to use the back of the screen, although the back of the screen was great later for reviewing images in the shade.
I think Canon will rollout DPAF 2 on all future R models now, history shows once they update their AF system all future models come with the same AF, even entry models, for example the entry M200 in the EOS M range and even the 250D in the aging DSLR range all came with Canons latest AF system. So, I think we can expect better AF in all future Canon changeable lens cameras from now on.