What ever happened to the high MP R5s?

Bigger wrote:

Lots of rumors more than a year ago of a pending announcement this year for a high MP R5s variant that have gone quiet for a little more than a year now. I realize that the R5c was a much more important development effort to put the overheating issues to bed. And the need to develop an R3 as well as an R1 also took priority. But will we see an ~90-100MP R5s this year?

Canon has several directions in which the need to move over time, not to mention the obvious issues of the pandemic and the generally declining camera market due to smartphones.

Right now Canon seems focused on backside illumination (BSI) ala the R3 to support better sensitivity (lower noise) and less rolling shutter.  Then need to get to a global shutter and eliminate the mechanical shutter ala Nikon Z9.  The rolling shutter on the R5 (no a personal problem for most of what I shoot) is a serious problem for the R5 for sports and action shooters that pay the big bucks for cameras and lenses that want both high frame rates and no rolling shutter.

Then you have the frame rate and buffer issues with more pixels which are probably tied to perfecting BSI.

Canon is clearly expecting the RF family to get to the 100mp range eventually, but it looks like they will be shoring up the product line first.  The question will be whether they introduce an 80-100mp camera that may have a lower frame rate and/or rolling shutter or will they wait until they can solve everything simultaneously.