I dont expect RPmkii and Rmkii before end of 2022.
There will be no EOS R Mark II. It was mentioned too many times already.
People are only using it for clickbait on YouTube because it includes the EOS R naming and it is what some people wanted.
It is the same with Canon Log 3 or ALL-I codecs for the R6, Canon never promised anything like that.
False information spreads like Covid...
What we might expect instead is something "done better" as an entry-level camera, like a Nikon Z5, and it probably will not be delayed until 2022.
So IBIS retained, dual SD card slots retained as well, but with a different sensor that does not have the video specs or ISO sensitivity of the R6 and a cheaper LCD screen, etc. basically Canon's version of the Z5, but they are keeping the body designs unique unlike Sony/Nikon so it can be smaller and lighter than the R6.
And the other camera may use the same sensor as this camera, but no EVF and single card slot to make it the smallest lightest and cheapest FF camera yet and they can market this as the "new M50" for vloggers as well. Also, if they remove the IBIS from this model, that would mean reduced / no wobble with lens-only IS, and also smaller and cheaper wide-angle RF lenses could come at that point.
Bottom line is: both the R and RP will likely be going away (at some point, stock should last a fair amount of time) and these new RF-mount cameras clearly aiming under the R5 and R6 will be slightly different.