According to latest rumors on CR, Canon currently is working on the EOS 5D Mark V, the successor of best selling EOS 5D Mark IV. The EOS 5D Mark V is expected to be announced in late 2020 to early 2021.
Canon EOS 5D Mark IV will have similar specs as upcoming Canon EOS R Mark II. Rumors also said that EOS 5D Mark V could be the last DSLR camera of 5D series.
via: CR