Why on earth do people keep assuming that Canikon will be able to take over the MF market just like that? Unlike all the other platforms, they will have no exisiting lenses, so they would need to ...............................
I doubt the Hy6 needs Phase at all. Look at the recent poll of which platform people would buy into if given the choice today, and the Hy6 leads the poll. Hasselblad and Phase got an early lead with past products (deservedly so), but they haven't done anything interesting lately if you ask me.
If you think the goal of any manufacturer is to get you to buy used lenses, or for that matter make it easy to use your existing lenses, then you must have skipped business 101.
The goal is to get you to buy everything new and as much as possible and if that isn't the goal any manufacturer will be in deep trouble.
The difference between Canon and Nikon vs. the standard medium format model is even if they start from scratch with new lenses they will be a lot less money than any of the competition from Europe.
You may or may not like the quality difference, but thousands of potential buyers will take advantage of the price difference and don't forget the dealer network. Canons and Nikons are sold everywhere. Shelf space has a lot to do with retail sales regardless of the industry.
In regards to the HY6 being interesting, yes it is to some extent, but don't kid yourself, whoever makes and sells the HY6 would be as happy as can be to have even 1/2 of the Hasselblad H series sales and market penetration.
As far as the Hy6 needing Phase, you should call F+H and ask them that question. I think you would be surprised at the answer and if truth be told a lot of people that really do know the camera business will tell you what a mistake it was not to have Phase signed on at the start.
You may be a Sinar user but if the market for the HY6 would double then your camera options would be better, your prices would probably be lower.
Phase has sold more digital backs than anyone and they are not going to go away overnight. I would make a bet that in the long run Phase sells more Phamiyas than Sinar and Leaf will sell HY6's.
Look how fast Phase has turned around that brand. New body, new lenses, new grip and now an association with Leica for even more lens options. Phase has some muscle behind them and for medium format a huge user base. They also seem quite happy to let the Mamiya stay an open platform for every back maker which will only increase the market for the Mamiya brand.