A couple of people have written in about the Canon EOS 7D Mark II being listed as discontinued at major retailers. Unfortunately, this is not a sign of an imminent replacement.
While the Canon EOS 7D Mark II body only is indeed discontinued, this was to make room for the Canon EOS 7D Mark II with the W-E1 Wi-Fi adapter, which has taken the place of the EOS 7D Mark II body only purchase option.
So while a Canon EOS 7D Mark III is coming, we don’t think we’ll see it for at least another 6 months. We haven’t received any suggestions of a replacement being imminent.