According to latest rumors, a new Canon EOS R Body with APS-C image sensor currently is in testing. This APS-C EOS R Body could be also a professional mirrorless camera, which means this APS-C EOS R body could be based on EOS 7D Mark II, for sports photographers.
Japanese website DC. Watch recently has an interview with Canon Executive talking about the new Canon EOS R (B&H/Amazon/Adorama/Focus Camera/WEX/ParkCamera), APS-C EOS R body, RF lenses. There are a few interesting questions and answers in the interview, you can take a look at below: (Translated by Google)