After the Canon released EOS R and EOS RP, next EOS R mirrorless body could be a high megapixel EOS RS body. The official announcement of EOS RS could be in late 2019 to early 2020. And Canon is also planning to announce a new pro level EOS R body next year, the release date is expected ahead of Tokyo 2020 Olympics Games.
Previous rumors said that EOS R Pro will be a mirrorless version of upcoming Canon EOS-1D X Mark III. It will have features equivalent with EOS-1D X Mark III. Stay tuned for more info.
via: CR