What is most wonderful about Canon and no one else is all your old AF lenses of the EF and EFs persuasion are fully compatible with the RF mount. So even if you have a large stable of great lenses the work, and from what I hear work even better on the RF cameras.Canon is doing it right. RF Lenses - especially high-end lenses before more RF cameras. I am impressed by the speed they are building op, an RF range of lenses.
Canon (and Nikon) might came late into mirrorless but especially Canon is showing their strength and muscles.
In the meanwhile I plan for staying with my 6D and EF-lenses for a while, and probably even investing in the upcoming 5DmkV.
So "R-series" and RF glass is 10+ years down the road for me.
I am in no hurry and am waiting as well to see what the RF mount line up fleshes out to be but will be definitely getting the RF system when I see what closely meets my needs and desires.