I am waiting one of those medium format companies specially Phase One to produce that camera which can be very good overall, high mp as usual with all or most MF, ofcourse best DR over all DSLRs, and most important better AF and high ISO handling, the weakest points with digital MF are:
1. Fast better accurate AF
2. Higher ISO with good noise handling
3. Not sure if that fps is very important in MF world, but if they can produce at least 2-4fps it will be more than enough for me, i will never use MF in sports even if it will do 8-10fps
4. More zoom lenses if possible, or let's say, more lens collection, and i hope they can produce tilt/shift lens instead of going with a tech cam or a T/S adapter
5. I don't care much about weight, but if i can produce that a bit lightweight body it will be welcome
6. Most important point, they are Damn Hell expensive
From all of your posts, it sounds that we should keep higher MP for MF only, no need to go over 20+ mp on 35mm DSLRs, even if i use film, i never used 35mm but scanning few compared to 6x4.5 and bigger, 35mm always left behind as resolution to MF, so i think same in digital area, MF sensors are bigger than all of those 35mm DSLRs so their mp resolution are at different class or level, and it shows me that those companies of Canon/Nikon/Sony trying to cheat us by producing those 35mm DSLRs to have nearly medium format mp [30-40mp], and they forget about their sensors sizes.