First, let's keep in mind that this is a CR1.
That said, it sounds reasonable.
A high resolution R "replacement" for the 5Ds has always made sense. The use case of the 5Ds series is well-suited to the advantages of mirrorless.
Having a "pro" level R that is sports oriented, but not a replacement for the 1Dx will allow Canon to test the waters and get a sense as to whether or not sports shooters want to try mirrorless. Low risk and cautious move for Canon with a base that doesn't react kindly to having its cheese moved.
Modifying this portion of my comments, because I re-read CR Guy's post. He's not saying it's a replacement for the 7D, but rather a companion body to the 1Dx III, just as the 7DII has served some as a companion or second body to the 1Dx II.
Laying out my reasoning below as to why I don't see this as a substitute for the 7DIII.
(However, it's not logical to term this a replacement for the 7D. The appeal of the 7D is the crop sensor and additional perceived reach it offers in situations where the user is distance limited. A full frame mirrorless with less resolution than the EOS R loses that advantage. It's bound to disappoint the 7D base.
Plus, the price point of a full frame EOS R with more features than the current R will be higher than the 7D. A camera that's likely to come it at $1,000 more than the 7D can't be targeted to 7D buyers.
So, I consider that conjecture dead wrong.
Canon has a real dilemma with the 7D series. They've spoiled us. We won't be satisfied with a downgrade to an upgraded 90D. An APS-C sensor R mount camera seems unlikely, but the M mount is ill-suited to the 7D user base. Best choice is to simply release a 7DIII with a few slight improvements (latest sensor technology, touch screen, wifi, etc.) and call it good for another 5 years or so until the market shakes out.