Got this from Gates on 4th January:
"Pricing is not yet set, however, I anticipate a ~$4000.00 retail price
NOT INCLUDING PORTS. Port choices will include a Fathom wide angle and
a Fathom Super Wide Angle. These ports are also in the design phase and
are being designed specifically for that camera. What we know at this
point is that the current Fathom ports will not work in front of the
FX1.
The professional version of the FX1 comes out in February. It is called
the Z1. Not having this camera in our hands means that we cannot be
100% certain that it will fit in the same housing, but we are making
every effort to make sure that is the case.
We plan to be able to ship at the end of March. I will be taking
deposits after the first of the year. If you want this housing, I urge
you to place a deposit; I have never received more inquiries on a
housing than I have on this one and I have a full page of firm orders
already."
From the spec sheet it basically sounds like a VX2100 housing built to fit the new cams.
Nick