As already confirmed before, Canon has at least one full frame mirrorless camera body in testing, and will be released in 2019. And as known to all, this will be the second Canon EOS R body. CR just said that we are likely to see entry-level EOS R body coming before high-end/professional EOS R bodies, so this second body could be a new entry-level full frame mirrorless camera with price tag around $1,500. And we are likely to see a lot of RF lens announcement in next 12-24 months.
Imaging-Resource has published a new interview with Canon Executive, taking about the Canon EOS R full frame mirrorless system. Canon Executive said that 8K video capable EOS R camera is already in the roadmap, which means this camera will coming in next several years.