It appears the Canon EOS R1 is definitely in the hands of select photographers, undergoing…
Canon EOS R3 Shows Up At Certification Authority (most likely)
It seems the upcoming Canon EOS R3 has shown up at a wireless certification authority. We expect the announcement in Fall 2021.
A Canon camera featuring the same Bluetooth module as the EOS R5 showed up at a certification authority. We think most likely it is the Canon EOS R3.

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[via Nokishita]