Absolutely makes sense to add the CFexpress slot. The last sequence in the processing is "Write To Disk". Things will certainly bottle neck with data from a stack sensor ----> standard SD card slot.
Not necessarily. The R6 Mark II writes 40fps to SD cards. The R3 does 30fps. I wonder if a new R6 III would go "back" to 30fps.
Lets hope it will get e-shutter + antiflicker (I don't know if the R6II has this?)
Yes, the R6 Mark II features anti-flicker with electronic shutter, as well as high frequency anti flicker.
The first thing that R6 and R8 (beside R8 battery life) need to improve is MP count (and I know this topic is controversial).
The R8 could have a 12MP sensor and it would still be enough as an entry-level camera. The fact that it features such a good sensor is the reason why so many professionals are purchasing them, despite not being the target users.
I think it's ridiculous to generalize that 24 MP is enough for everyone who uses full-frame.
It really is enough. I replaced a 26MP 6D Mark II with my 20MP R6, and never looked back.
Clients get full resolution files, at sizes that are way more than what they need, and for web and friends I usually export photos at 2000 pixels on the long edge.
Fragile? I have been using it on 600D and never failed neither broken... Don't use it, if you don't want.
I can suppose that Canon doesn't include it because some customers aren't able to disable/enable it.
The entry level full frame cameras from Canon never had a built-in flash. The 6D did not, the 6D II did not, the RP does not, and the R8 does not. Plus, the R8 is mostly made of magnesium alloy, like the higher end models. There's no reason to downgrade on build quality to acomodate that.
The fact is that carrying a heavy zoom lens (24-70 F2.8), for only 24 MP, really doesn't make much sense.
Because you don't. You carry a 24-70mm f/2.8 for the extra light, the same way I carry a 28-70mm for the f/2, regardless of sensor resolution.
I'll take the extra dynamic range of a 20 to 24MP sensor any day over the 40 to 50MP resolution of the R5.