Oh no, I hate APS-C, RF should be FF and M should be APS-C, end of story.
RP proved already that FF can be small+cheap (if many years of even smaller Sony wasn't enough). And R5 already proved that FF+high resolution can provide high FPS.
All that's needed is to better these technologies and make them cheaper.
7Dmk2 is 20MP@10FPS and everybody was happy with it. EOS R is 30MP@8FPS. A new Rmk2 could easily be 30MP@15FPS and still be small/cheap especially given the R5 which is 45MP@20FPS.
I really don't this APS-C is that much needed anymore for technological and economical reasons, gone are the 2000s. It's just marketing/sales strategy