Canon is rumored to announce a new EOS R7 mirrorless camera by the end of the year (2022). There are no leaked specifications available yet:
"We have been told that the Canon EOS R7 is now scheduled for a Q4 of 2022 announcement. This tends to fall in line with the usual late August/Early September announcements that Canon is known for." (via CanonRumors)
The Canon EOS R7 is expected to be an APS-C RF mount-based mirrorless camera.
Also: Canon has mentioned on several occasions that the current Canon EOS R3 is not their top-of-the-line mirrorless camera and a new R1 model is still expected to be announced:
The Canon EOS R3 is not the flagship camera, the R3 sensor may not be produced by Canon
Confirmed: The Canon EOS R3 is not the flagship mirrorless camera
Reminder: Canon still has to announce their EOS R1 flagship camera
