Yes! This would be my biggest ask. Since it is in the R6 III, it makes sense to port to the R5 II and R1. Both these cameras should(?) have longer refresh cycles and matching functionality with the R6 III for simple FW features early in the cycle makes sense. At least it makes owners of the R5 II / R1 happy and more likely to keep R5 / R1 series cameras.
UVC/UAC Live Streaming is another one I would like to see. The R6 III allows the user to set the video output quality up to 4K60p. The R5II/R1 has a fixed 2K30p output. That would be another nice update.
I don't do a lot of video aside from the talking head streaming, so not too sure of those features. Open Gate for instance, isn't that just recording the full sensor as opposed, say, to a 4K subset (or sampling the whole sensor and outputing 4K in oversampled/high quality mode)? If that is the case, doesn't the R5 II (and R5 for that matter) already provide an "Opener" Gate by recording in 8K, as opposed to the R6 III 7K Open Gate?
At any rate, useful feature updates are exciting!!! Aside from features released in the R6 III, we have the features present in in the older cameras like 400MP images in the R5 (which I'd like if they can make it actually work with improved IQ over AI upscaling) and the R3's 195fps burst mode, which is useful for certain settings. These are niche, though, so not sure we'd see Canon spending time on them.
Then there is actual new functionailty that hasn't been introduced before. Unless there is some competitive pressure, I wouldn't expect to see a lot of them, except mabybe some trial features like the 400MP Pixel Shift or the 195fps high burst rate.
What I would expect (ok, hope) is that they would come up with significant AF improvements for the R5 II and R1 that leverage the Digic Accelerator to make the AF capability of these cameras more noticeably better than the non-Accelerated cameras to help differentiate the higher end models.
