Canon has already released the EOS R5 and EOS R6 several months ago, next Canon is rumored to announce the flagship mirrorless version of EOS-1D X III – the EOS-R1. Canon EOS-R1 is expected to be announced in the second half of 2021. Along with two “Big White” RF mount super telephoto prime lenses.
The first super telephoto prime RF mount is rumored to be RF 300mm f/2.8L IS USM lens, while the second one is still unknown yet. Stay tuned.