Strange thinking , why does it follow that the R1 would be any different resolution to the R3 ?They did not, but since the DX1 were about 20MP and for the task they are build for it is the reasonable MP size, the R3 can not be in that range, it has, commercially, and since it was not declared to be 'flagship", somewhat higher. Physical aspects of data transfer rates gussets the upper limit of the sensor. It is as accurate as the "leaked" image size (which was done on purpose if you ask me)
Both bodies are likely to be high speed action cameras like the 1DX line.
The R3 is definitely a sports / action camera and is rumoured to be 24mp . Just because Canon doesn't consider the R3 to be their flagship model that doesn't imply that the R1 will be higher resolution.
Canon always has sports/action cameras as their flagships .
You seem to be using wishful thinking because you're obsessed with the idea of Canon making another high resolution camera .
We'll know about the R3's actual resolution next week and we'll have to wait until the R1 is announced to see what Canon chooses for it's specs , I predict in about 3 years time in Paris.