I have contacted the DHW-Fototechnik (again) and got a reply that the camera is available since beginning of 2013 and is made on order. They need about 2 weeks to get it ready. It costs € 5000. I have requested some more information (mostly about accessories) I will share if I find out more.

5000 ... well ... makes the FX I have missed (2000€ with 1 year of warrant) sounds like a bargain. I would like to see the camera in person though - it seems that because of the shorter minimal focus distance it got 'thicker' and I do not know about the weight. But it IS tempting. I already had thoughts on selling most of my current gear (I will be selling 4x5" soon anyhow ) and another load of cash and go for it, but I would have hard time to let my Mamiya 6 go ...