Some miscellaneous thoughts - for me, and I recognize that I'm not everyone, an R7 II would be desirable if it had the same or increased pixel density along with reduced high-ISO noise. I know, I might be bumping up against the laws of physics here, but for my purposes, pixel density and low noise are two big factors.
Improvements to the AF, which is already good, would be a plus for birders and others seeking to photograph the proverbial needle in a haystack.
Readout speed - yes, a must for E-shutter, though I use E-first curtain and get plenty of images typically, for my purposes.
On the part of lenses, I have no idea why Canon didn't, at a minimum, take the best of the EF-M range and adapt them to the RF mount. That is, do what they did with the 18-150 lens. A 15-45 with Canon's 1.6X is a very suitable normal range telephoto. The 32/1.4 is great, the 22/2 pancake lens. Should be pretty easy as the back focus distance is almost the same between M and RF. Seems like Canon has ceded the RF-S lens manufacturing to third parties.