The Canon EOS 7D Mark II and Canon EOS 80D are already quite old now, and according to previous rumors, replacement of both cameras will coming in 2019. Canon has already confirmed that there will be no new EF lenses in 2019, but this not mean we will not see new DSLR cameras.
According to CR, EOS 7D Mark II and EOS 80D are rumored to be replaced by one APS-C DSLR camera. While the EOS 77D will remain the DSLR above the Rebels, and perhaps an update to the EOS 77D is also coming.
The new APS-C DSLR camera could have a very well built and high frame rate to please the shooters who are looking for EOS 7D Mark III, while the price should be lower to please the shooters who are looking for EOS 90D.