Let's be frank here, one of the only ways that the Canon EOS R will really truly survive beyond the glorious lens selection with this much competition is through constant support of the camera. Look at Fujifilm--you can purchase a Fujifilm X-T2 and at the end of the camera's life cycle you can feel like you've got a brand new camera due to how Fujifilm treats their customers.
Canon hasn't always had this same mentality and so it's time to embrace it even more. After using the Canon EOS R for an extended amount of time, I really think that it's going to need a few updates via firmware to get folks moved away from other systems. . thephoblographer.com