I think canon will surprise us this time with a more well rounded camera but I know a bit was far fetched
Canon's generally pretty good at looking at the whole market and assessing what features a product does and doesn't need. They definitely almost never 'over-feature' a camera, which is something I think annoys a lot of people given what Sony does. They are on the back foot compared to Sony, and definitely lack certain flashy features. They have the image quality down, but not the frame rates, and it seems like they'll always be a half step behind Sony. They've only just added on-chip ADCs, and definitely haven't refined them as far as Sony.
My hopes for the C100 mk3 would be to have the C300 II sensor, with the extra DR, and some sort of usable 120 fps. I don't think it'll out do the FS5 on paper, but at the very least I hope it keeps up in 4K and bit depth.