I have to admit that I don't understand at all the dire need some people have for native RF lenses, especially not in the context we have now - Canon could, if they wanted to, almost completely disable the entire EF lens lineup with the switch to RF, but they decided to all EF lenses breathe new, high-quality life on the RF mount. We have as many as 3 different EF-EOS R adapters (I personally have all three of them) that provide fantastic possibilities, and all of which are very little talked about. All of my EF lenses, and I have nine of them, perform significantly better than ever before on any EF body I own (or once owned). The only RF lens I have is the 24-105 f/4L IS USM, although it's a great lens, I have no real desire to replace any existing EF with an equivalent RF right now. And even if I needed a new lens, I would definitely go for a well-preserved used EF lens rather than an RF. One V-ND filter covers all my EFs, one C-PL covers all my EFs, the back cover of the EF lens can be mounted on the lens in any way, while on the RFs I have to waste time carefully aiming the position of the mark on the rear cap with the mark on the mount, the ergonomics of many EFs are better to me than on comparable RFs... Basically, with such a quantity and range of extremely high-quality and affordable EF lenses (both Canon and from third-party manufacturers), I don't see any immediate need for Canon to open the RF mount to anyone.