SD+microsd? Dual microsd for what I care, I have already been using microsd cards with 5Dm4! Who uses fullsize sd anyway?? Now that you mentioned it, I forgot to rant about SD card slot for years now. It just needs extra adapter for microsd, adding an extra point of failure. Of course we use microsd, as we need microsd everywhere, drones, drone remotes, action cams, and how knows what. You want your cards to be compatible with all your equipment.
28/2.8 retro version? I'm in.
45/1.2 and 35/1.8 retro versions? Meh...I'd rather see new lenses developed, 28/1.8 and the previously rumored 55/1.8. 100/2.