I have been told by a pretty reliable source that Canon will announce another RF mount camera in 2020. What exactly the camera is, I was not privy to at this time.
I do not believe it's an EOS R system camera, but an RF mount video camera. I also don't know if this is a totally new product, or if it's an adapted Cinema EOS camera that is currently available.
I believe we may see an announcement for this camera during the last week of August, or the first week of September ahead of when IBC 2020 is scheduled to happen.
More to come…