Canon will release an astrophotography EOS R mirrorless camera in 2020. This camera will be named Canon EOS Ra, already appeared on an internal Canon roadmap for 2020.
The Canon EOS Ra will be a dedicated astrophotography camera. In the past, Canon has already released EOS 20Da and EOS 60Da for astrophotography. Currently, there is no specs about this EOS Ra full frame astrophotography camera, stay tuned.