Canon does not do that type of thing.I guess, my wish is for a oversampled image that has the RAW workflow so there's no crop. I know it's not really RAW in the purest sense since it would require in camera processing to downsample the 8K to 4K. But working with RAW files is just enjoyable for me. 8K Raw even the lite RAW is so gorgeous when rendered, but man the files are huge. So maybe my wish is just for a more economical resolution in raw without crop.
However, Sigma FP RAW and Nikon external ProRes RAW and external BRAW either bin, downsample, or line-skip to get 4k "RAW".
It would make more sense to me to have external ProRes 4:4:4 than RAW in name only but what do I know?