It appears the Canon EOS R1 is definitely in the hands of select photographers, undergoing…
Canon Might Have An EOS Ra For Astrophotography Up Their Sleeve, Report
So, now we have three different Canon EOS R models that are rumored.
Latest rumor has it that Canon is working on the Canon EOS Ra, a full frame mirrorless camera dedicated to astrophotography. The Canon EOS Ra could be announced in 2020. If true, 2020 would be the year Canon might release up to 3 new EOS R bodies.
Canon made DSLRs for astrophotography in the past. The Canon EOS 20Da and Canon EOS 60Da. Cameras for astrophotography have increased IR sensitivity. A mirrorless offering for astrophotography makes sense. The source of the rumor states that the EOS Ra moniker already appeared in a Canon internal roadmap document. No specifications have been suggested.
The other rumored EOS R models are a high-megapixel camera and another one at EOS-1D X level.
The next Canon mirrorless camera we expect to be announced is the Canon EOS M200.
Stay tuned.
Source: Canon Rumors