wow, a fixed lens medium format camera - that is a really off the wall concept from Fuji...
Fuji, Meet the ermanox. A 645 (full frame) plate film camera with a focal plane shutter (speeds from 1/20th to 1/1000s) and an unusually fast fixed ernostar 85mm f/1.8 lens, not bad for 1924.
So Fuji here is your challenge, if you ever make a fixed lens MF camera make sure the lens is fast enough to be worth it, with a short flange focal distance it shouldn't be hard to make something interesting*. Sigma with their compact cameras completely missed the point of having a large foveon sensor compact camera, and crippling it by pairing it with a slow lens. Even the new quattro has a lousy 30mm f/2.8 lens, when SLR users get a 30mm f/1.4 lens that is two stops faster, WTF?
* A 75mm f/2 asph would be a good place to start with. The lens only has to cover a 33X44mm sensor. If they try to make a "compact MF camera" to appeal to the consumer demographic I will be ever so slightly annoyed that again, small size trumps photographic flexibility.