UPDATE of what we found out:
- the coating is the same as on the one R1 picture we got from Canon, so this is the R1 (what a surprise)
- The Viewfinder is huuuuuge, so i am pretty sure we will get close to 10MP resolution AND the 2. generation of Eye-Control
- the multishoe has a lockable cap as far as i and others have spotted
- the R1 is far bigger than the R3, just look how small the 85mm f1.2 gets on it
- A metal bar for straps at the bottom (not seen at the R3, but aviable at many vertical grips and all the 1D-Series cameras)
- battery percentage on the top LCD is also new, not seen on the R3 Top Screen or any other, but aviably on the normal flippy screen
- The top button layout is the same as on the R3, plus a WB-Button
- On the top are also two new symbols near the M-Fn button and the LCD-light button in a blueish colour: according to Tool the gas-station-like Symbol is the FTP-Symbol which indicates a dedicated button for wireless transmission. The other one shows a crop-symbol which might be a sign for a integrated teleconverter
- the ON-OFF switch on the side, is for controling the vertical grip functions and was used on previous 1D-series Cameras, but is not built into the R3
- the card slot seems just a little bigger than on the R3, and has a new locking mechanism
- the bottom shows us an HDMI logo, so it features full HDMI
- a diopter control is also built into the viewfinder. I expected it, but just have it in here
- Also the mode-switch is the same as on the R3 and R5
- SN shows a 31, so this is number 31 to be produced
- The registration-ID says DS126925, according to most of the people, it is not the same as on of the 3 (-22, -28, -04) we have seen in the rumored registrations
- overall is the camera bigger, but especially thicker than the R3, that also improves the ergnomics (it is possible to measure the dimensions, with the dimensions of the 85mm f1.2, but i won't do that
)
- the battery voltage is something over 10V - while the 1DX III and R3's LP-E19 Battery runs with 10.8V, the R1 runs with something like 13 or 15 point something Volts as far as i have spotted out of the pictures. So does this lead to a new battery? It would be no surprise to me.
So this is all I could find in the pictures and here in the discussion - concluded to a more or less complete list of what to see in the pictures, updated today.
@Canon Rumors Guy here is a little update for you
Let me know any further things you have noticed, and i will update it again.