Speculation!
For photographers, I can't think of anything more than better Dynamic Range, less noisy ISO and the ability to buy a stills only version of the R5 at a discount.
For kicks
- ISO that goes to zero or even negative
- Plant, Tree, Flower, Fruit AF
- A rear facing 5 MP camera
- Alexa, Google Assistant integration
- Left Eye dominant/Left handed bodies or portrait mode oriented bodies
- Some kind of repellent for those crowded areas to clear out those annoying people in your shot. It could be an odor, or ear piercing frequency that will send them running
- Built in IVY CLIQ printer
- Built in air bags for when you accidentally knock your tripod over
- A.I. that will suggest hashtags for each shot
Tongue in cheek obviously, but I think what would be useful technology or just cool things to have on Canon would be things like
- Variable Shutter. Depending on how hard you push the shutter button, you vary the FPS. As you increase pressure the FPS goes up.
- Eye Tracking Autofocus. Not Eye Detect AF. There is a technology that can track where you are looking at on a monitor. They have those youtube videos where they watch... ahem well endowed women as a challenge to avoid looking below the neck region. Failure is almost guaranteed. lol. Humor aside, it is pretty impressive how it can track what the eyes are focusing on, on the screen. If you could incorporate that in an EVF, you could essentially control the focus point by just looking at what you want to focus on.
- Film simulations ala Fuji
- Some kind of EVF Flash/Exposure simulation. Instead of just turning off exposure simulation to shoot flash photography, there's a mode that will incorporates the flash settings into the exposure simulation.
- Anti-theft: How about a kensington lock for the body? And a locking mechanism so the lens cannot be removed by anyone but the user?