If the 70D is truly supposed to be a "significant step forward" -- I'd like a sensor that is superior to both the current 60D and 7D (same sensor) -- if another 18mp that is new and improved that is fine, but definitely better noise control in higher ISO -- something where 6400 ISO was very good out of camera without a lot of post, and 12800 was usable. I'd presume the 70D and 7DII would use the same sensor, but that may not be the case. If it were a 20+ mp sensor all the better.
Would want to be above 5fps, closer to 6fps if possible.
Would like an excellent AF system -- my 40D 9pt all cross is pretty good, but it would be great to have that 17 or more cross focus points (heck, and maybe a set with f2.8 or f4 sensitivity beyond and f2.8 center point surrounded by the "normal" f5.6 cross points) with some of the more advanced focus logic -- something to move forward with when I'm shooting action (dog agility and such) that will be superior to the present 60D and allow for some additional complexity AI Servo tracking -- this doesn't have to be top end autofocus, but I hope some meanintful advancement.
MFA and the associated upgraded features on a lot of these cameras (e.g. CA and viginette corrections, HDR options, better multi-exposure and AEB).
Metering that uses the more advanced logic available on the current newer cameras, maybe something like a 6D metering capability.
No reason to limit flash synch and upper shutter speed as done on the 6D - so 1/8000 max shutter with 1/250 synch in flash --
Good video capabilities -- it doesn't have to be top end like the 7DII or 5DIII should be, but good HD video that improves on the present sensor (60D/7D) capabilities -- in otherwords an improvement in this area without being high end would be very acceptable to me.
I'd love to see a 100% viewfinder, but probably that will be reserved for the 7DII and not the 70D.
My 40D uses CF, so I'd like to see the 70D do that, but that isn't a biggie to me. Single slot in this level of camera is also acceptable to me.
For me maintaining the 60D LCD is OK, but how about a 3.2" LCD? I think I'd like the articulating screen myself, and a bigger one would be jiffy. But 3" >1m dot would be way above my old 40D which is truly at least a significant generation behind the 60D which itself has a nice LCD.
I'm not a biggie on Magnesium v Plastic -- both technologies are proven and would meet my needs -- just good solid construction with better weather sealing as an improvement. My 40D is magnesium the 60D is plastic, whatever.
I'd love to see wifi and gps -- the gps isn't a biggie to me, but the wifi would be, uh, "jiffy"
I hope those kinds of things don't result in a $2k 70D, so I'd like to see at least some of this without blowing the price window in that <$1.1k price range. As such, all if this may be too much to hope for -- but that would make it something I'd upgrade to quickly, and that is what is asked in this thread. I think the #1 area is the sensor -- will it be improved or just the same one rehashed?