With tethering support for Sony now coming, I think it's possible to see one direction that Phase One is going for the "new body". Sony the one and only. I just can't see Phase One building a new body from the ground up, making the actual physical components, etc. They have always worked with an existing brand, currently Mamiya.
Sony seems poised to release a MF RX1, did not hit yet, but I can see a lot of that going into the "new" Phase One" body, just have to figure out the mount, if Sony has the rest done. EVF 50MP, tilting screen, peaking, etc.
Can't complain, Sony makes good stuff.
Paul