The logic is:
Since the sensor in the Mark II is identical to the sensor in the X1D and X1D II, and thus to the sensor in the Mark I as well, I can't how how it would be different. They're all the same 33x44mm, 50Mpixel Sony sensor.
As far as I'm aware, Hasselblad has never used antialiasing filters and there's nothing special about the microlens array on the sensor.
V system lenses don't require custom sensors .. neither an asymetrical lens array (like Canon did with their first FF DSLR sensor) nor the aspherical lens array (like Leica did with M240 and up sensors)...due to the V system mount flange registration, and handle the issues of the SWC's Biogon 38 (and other lenses if needed) specially in Phocus. The XCD lenses are simply designed for the X system short mount registration, which makes sensor development easier and less expensive.
Leica M lenses, with a mount registration of only 28.5 mm AND an empty box between that and the film plane, required special sensor development (contributing to the high cost of the digital M bodies). Canon EF lenses also have a relatively short mount registration for an SLR type camera (44mm) and they at first considered it important to use a custom sensor. Since then, they've gone with a 'standard' sensor and revised their lens designs to suit.
Hasselblad V system lens mount register is 75mm due to the swinging mirror: lenses have to be designed with that in mind from the beginning and thus the ray trace to edges and center are all very close to parallel, with the exception of the special SWC lens.
I'm happy to be informed otherwise, but would like to see credible documentation of anything different. This is what I've found through all the hunting and searching for information on this topic that I've done, using Hasselblad, Leica, Canon, Sony, and other credible information sources.
G