At 10K, per body, I don't feel there will be a huge rush to market for this camera. The current GFX price point is just above the top end 35mm DSLR offerings from all the current companies, but to leap to 10K, many will hold off. You can get a lot done with the current BSI chips from Sony in the Nikon or Sony 35mm DSLR lineup. Also the need for 100MP is limited as the vast majority of people taking digital images, prefer the much more simpler phone cameras. Photographers making a decision to jump up to a 10K body, or stay with a very good 3.5K priced 35mm body that odds are will grow to 70MP in a year or so may not want to move to the Fuji. Only time will tell. If the Fuji had come in around 8.5K, or 7999.00 I think that the growth and acceptance would have been greater.
At 10K, you will get some new business from photographers on the fence looking at a larger cost outlay for a digital back setup, but I just don't see many 35mm photographers move to the 100MP due to costs. Also those looking at a used IQ3100 or other P1 back, the 10K new camera may make more sense. It will be interesting to see if Fuji has a Value Add type warranty offering or at least a warranty offering past 1 year basic.
The added features for the 100MP Fuji are still way out there, like Pixel shift, and IBIS etc. I have not seen anything official from Fuji on this beside IBIS. The body IMO is much larger, and thus heavier. I would have preferred a non integrated battery grip as one of the features of the GFX I like is size, and the new body is huge.
Nikon IMO missed a big opportunity with the Z cameras to implement a pixel shift solution, not surprising to me, as they still don't offer a GPS or built in intervalometer in any of their cameras. (Sure the Astro camera has a intervalometer but that's not main line). These are both easy and quick features to add to a chip, look at any phone (GPS) and the Pentax K1 (GPS and intervalometer and IBIS). Nikon does not tend to add large feature sets to their cameras, they just make a new model, so the current Z is done.
As far as the chip 100MP BSI, issues like diffraction will come into play even with Fuji's built in lens adjustments. If the chip shows as much promise as the 150MP that P1 is now starting to ship, there may be more photographers willing to make the switch and move up.
It's going to apparently be a mid year 2019 release anyway, so lots of time to see what happens. Things Fuji might try to remedy:
1. Move the stupid Q button, off the back of the grip.
2. Figure out how to better use Focus peaking
3. Figure out how to display the image correctly at 100% view in Live View (Current solution is less than adequate for detail focusing IMO) exactly opposite
to P1's Live View at 100%
4. Greatly improve AF in low light, or low contrast solutions, as currently in such conditions AF is very difficult to get a good solution and Live View again
is pretty worthless for low light detail focus analysis
Paul C