There is a very close solution to your request and it is much more easier than putting complicated shutters in every lens (which I think is mad and a total waste of resources). Modern CMOS chips support a so called global Shutter reading, the only thing a shutter needs to do with this capability is finishing the exposure by covering the sensor while its read out. 1 shutter plane, that´s it and any sync that you want/respectively the chip speed supports. With any lens.......... ! Nikon already had built this in a former model in the beginning of their dslr´s (forget the model number).
There is NO reason why this should not be done again.
And about Dalsa: of course they can build a big CMOS ! But as they are profit driven and not a club to save MF camera makers they want money for this ! Shell down around 20 Mil $ and guarantee a minimum number of chips per time and you´ll have it !
SO : Again - either the MF industry reacts and does something or they will dwindle away and this will include all the peripheral makers of connected stuff and Tech cams as well.
PS.: Olympus and Panasonic are already working on this - for their consumer stuff !