Canon is rumored to announce a new EOS Ra astrophotography full-frame mirrorless camera: reportedly a listing for a new “Canon EOS Ra” model has appeared on an internal Canon roadmap for 2020.
Canon already had two astrophotography cameras in the past: the EOS 20Da and the EOS 60Da.
Update - CanonNews spotted a leaflet about the rumored EOS Ra model:
Via CanonRumors