I think that MF is getting to a point of consolidation, the good thing about it is that we will begin to see more options in areas where left out such as Tilt Shift solutions. Hasselblad has a history of providing photographers with tools that can go the extra mile and solved problems using uncommon creativity.
But politics in D MF era are very particular. Would they make a Tilt/Shift product that can be used with other digital backs? no way, they want you to buy their 28mm --that works on leash to their body -- plus the body and, most importantly, the back.
Other approaches to tilt shift, in my humble opinion, should start from the back, not the front of the system. First of all, you should shift the lens --and body-- and leave the "film plane" in the same spot if you want to stitch the best way possible.
Larger format systems will work better for this solutions, for example, all 6x6 have a larger image circle that, if shifted, can give a fantastic wide angle image when stitched. Same thing with 6x7 systems like Pentax, Mamiya RB, RZ.
A back that shifts in the back of a camera could be done without the close up factor or need of extra optics, the only problem would be to compose using the reflex system...
The other problem with Hasselblad and other MF camera makers is that Nikon will soon release a full frame body with more than 20megapixels that will plug directly in to a 24mm tilt shift lens....