First thing to do is look at the target market and as I see it the 6D was introduced to enable people to buy their first FF camera at a reasonable price. basically purchasers had a choice -the 6D as an introduction to quality images for FF users (landscape and some portrait) and the 7D as an introduction to the AF systems for action/wildlife.
At the time of release the 6D cost was a bit more than the 7D and I see the same thing happening here. So any new stuff has to be in a package with a retail cost of about 1800-2000 USD (in UK probably about $1700). For the target market I think we will get:
-24-28MP (more would be a treat, but I don't think Canon would go over 30, based on the recent rumor, 25 sounds about right).
Another sensor design spec? i think they will either use the 1DX2 or the 5DIV sensor
- -4EV Center Point AF capability, improved ISOs would be great (its already great in the 6D, would love to see more in 6DII)
nice
-6FPS (more would be nice, but I doubt Canon would go over the 5DIV)
-1080p60fps video (I'd love to see canon throw in 4k thats good, but I doubt they would want the 6dII too close to the 5DIV)
probably correct here
Card storage- two ports SD UHS-II
Extras-USB 3.0
Ultimate low light performer I think the sensor on the 6D outperformed the 5DIII. I would like to see this continue.
X-sync- 1/200
Shutter- 1/8000 good for 150,000 actuations.
Probably too far Again, a wish list item, not expected.
-Updated AF system (more points spread across a greater range).
As mentioned elsewhere, 19 points seems reasonable or a skimmed down version of the 80D is likely. I think the AF is it's single biggest area for improvement.
Noise control- Although it is great, I would love to see a clean High ISO up to 25000
probably too far. Not sure even the 5DIV can do that
Speed- 6.5 fps
-Touchscreen and Articulating Screen - Would be SO helpful in so many ways.
Appears on the 750D/T6i at half the price so probably can be done at the price range. But I don't hold my breath. As also mentioned I prefer the tilt as opposed to full swivelly thing so that with touch screen would be ideal for me
Built in radio flash trigger
do you mean optical or infra red? Any would do.
If these three were taken together, it would make me wonder what the purpose of the 5DIV is as well as hiking the price up. Separately one or tow may appear but as a set, I very much doubt it..
-Dual Pixel AF (being able to use autofocus in video, like an 80D) -
not needed for the target market but would be nice Agree with the current target market, but it seems DPAF could go into every camera Canon makes from now on and if it goes "Upscale...."
- Weather sealing- let me shoot in normal rain
define 'normal rain'
Just something you wouldn't have to sprint inside to get away from.
- AF- at least similar to T6s, 19, all cross type down to f/8 so we can use a teleconverter and AF focus ability while video recording
does not match my assumptions on the 'target market' but it would be very nice to have but not essential I thought this seems like a fair compromisebetween the current 6D and the 5D IV.