I wouldn't be surprised if Canon realized after the R3 that trying to play catch up with SONY, Nikon and even Fuji for specific modalities compartmented or bundled is futile.
Thr R1's delay was caused by competition and Canon not wanting to put an obsolete into the market. I fear however, that Canon will again, put a less than spectacular R1 on the market.
The R1 was supposed to be Canon's giant killer. A flagship to end all flagships... The Mother of All Cameras.
Adapt in the Studio, Sports Arena, PJ's, Weddings, Portrature, Fashion Runway, BIF and on and on.
The R1 will not be all these things. The R1 will be a drip... drip... drip... with the R1 II announced and rumored as another drip... drip... drip... anounced to make up for the camera's shortcomings compared to SONY, Nikon and others technology.
Unless there is substantial innovation, I don't see the need for an R1 anymore.