So I decided to do some brainstorming and figure out what my ideal set of gear would be which Canon could deliver in less than a year. I thought I'd post it and get some feedback.
1/3rd stop better ISO than 5D3
Almost all butons able to be reassigned through custom functions (not just set button and a few others)
Built in Wi-Fi with remote live view and automatic file sync
Built in Canon wirless flash transmitter
Canon has the technology to go 1/3rd stop better with ISO and deliver up to 200 megapixels, as proven with the G1X pixels, the other stuff is a no brainer, come on Canon.
Note: Canon does not use APO designations, their big L lenses are APO though. Canon really neglects APO and needs to stop.
Canon 24mm TS-E II f/3.5 L (existing)
Nothing needs changing with this lens. Maybe a faster aperture.
Canon 24mm f/1.2 L USM
The old lens with the faster aperture it could make good use of.
Canon 24-70mm f/2.8 IS L USM
Tamron has shown Canon how to make this lens, now all they have to do is make a high quality version of the Tamron.
Canon 50mm f/1.4 L APO USM
Rodenstock Makes a 50mm APO lens that is 2 stops slower, it would be fairly simple to make the design larger.
Canon 85mm f/1.4 L APO USM
Leica has a fantastic 90mm APO lens, which has a very similar design to the 85mm 1.2L. It should be fairly easy to design such a lens.
Canon 135mm f/1.8 L APO USM IS
This would be an upgrade on the existing 135mm, Zeiss already has a great 135mm f/1.8 design so it's readily possible.
Canon 75-225mm f/2.0 L USM IS
Sigma proved you can make such a lens with the 50-150mm OS, all you'd have to do is scale their design up. Many EF-S lenses inspire or are based off of full frame lenses.
Hopefully Canon is listening.