I think a price cut is possible. Back in the days Kodak actually published sensor prices they were like $3,500 for a 36x48mm sensor to the manufacturers, which ended up in $20,000 backs.
They would probably need some attractive entry level product that can sell in higher volumes than they do today. Remains to be seen if they can pull that off...
That's a classic dilemma. If a price reduction works, and the volume increases dramatically, they'll stay in business. If they aren't able to regain lost ground, they're out as a result of the lower profits. To make matters worse, they will have to increase sales to a level not previously seen to make up for that lower profit. Then the question will be if a market of that size is there at all.
Another problematic side of this is that most MF sensors are too close in size to 35mm. Only very few are anything near 60 x 45 mm, not to speak about 60 x 60 or larger, which I believe is one of the reasons why the D800 can take parts of this market relatively easily.
A different approach would be to become more advanced and more expensive, to make a 60 x 60 or 60 x 70 sensor, one that would fit in RB, RZ, Rolleiflex, Hy6 and GX680. Development costs and reduced yield would make it expensive, but it would distance medium format from 35mm with a large margin,
even if the sensor doesn't have more resolution than 60-80MP.
Apart from the technical and economical challenges, there's little or no money in this for other than the manufacturer of the back though, at least initially, since there's an enormous quantity of cameras and lenses available already for very modest prices. So I can't really see this happen. It sure would have been nice though