I went back and forth on that. If you have more throughput than the 1DX3, would you throttle down when you switch to the SD slot? If you are asking consumers to buy new glass (as an investment) then I think you can do that for storage on $3,700 bodies. Maybe the RII has one of each as an intro to CFE.
The RII will be in an interesting spot. It can't encroach on the R5, but has to offer something over the R. I thought +2MP and 2 slots was not enough, but what more can you do without devaluing the R5. The R5 differentiator can't only be 8k...
With the 1DX3 just out, one would expect the R1 would be at least a year if not more. Need some big RF glass to drive the need. Also, as a former sports shooter, EVF lag is not acceptable, so that is a challenge.