Based on the P1 track record on bodies, AFDIII (with upgrade to DF), DF, DF+, and XF (and XF finally getting it right), hope they cross all the t's and dot the i's. P1's biggest hurdle, simple, lenses. All of the current Blue Rings are massive, heavy and will need an adapter to work with a mirrorless system. In effect same issue Canon and Nikon have now. Sony had it briefly, but then years ago, went pretty much all mirrorless. Some of the larger blue rings like the 40-80 and 75-150 will have balance issues (lens far out weighs the camera) if P1 makes a mirrorless body in anything close to the current state of the industry.
If they bring 150MP, I really could care less. Don't need it and never will. 100Mp is hard enough to work in 16 bit and the files get huge with layers. 150MP will also have a increase in diffraction issues unless P1 uses a large chip than current. Just as the 100MP cropped sensor will have similar issues for the follow ons for the X1D and GFX.
Hasselblad and Fuji both have great systems, and have a 2 year head start. In the fall we should see the announcement of 100MP in the Hasselblad and Fuji systems. 100Mp is all I need and want and if it's a cropped sensor so be it.
Hopefully P1 will finally figure out that YOU CAN have more than one focus point in the MF world. In fact you can have over 100 of them and all very accurate. Even without a Phase Detect sensor, as again has been proven by both Hasselblad and Fuji. Fuji and Hasselblad both now have 2 years of testing with their first platforms either of which IMO is vastly superior to the XF and it's limitations. I am hoping that both Fuji and Hasselblad have IBIS in the follow bodies, Fuji has experimented with this now in the X-H1 and for a 1st attempt it's impressive.
Let them continue to keep their head in the sand on C1 and support for other MF platforms. For sure the P1 mirrorless will cost way too much for the same degree of feature and function and again will be limited to about the top 5% to 10% of MF purchases. That will leave plenty of room for growth for other vendors. C1 I find in a strange place. Great color management and layers, but no ability to create a pano or exposure bracketed image, without exporting to tif and reimporting to LR or other tools. It's too bad Adobe can't figure out how to give LR true layer support as multiple adjustment brushes are not the same thing.
I do wish P1 the best for future products.
Paul C