Yes they are still tweaking the firmware but as it's dealer demos that are being shipped I think they are less concerned about the cameras being updated after shipping. For end customers they will want the correct firmware in place.
Hope that makes sense.
Ming Thein, an official Hasselblad ambassador claims in his X1D presentation,
, that the X1D has the same image quality as the H6D, being in fact the same sensor/processor but the mirrorbox and removable back of the H6D... Therefore, if there is "tweaking of software" happening, it can only concern "lens corrections" of the newly introduced lenses, which is a minor issue that can always be corrected later and can in the mean time "corrected" manually by the user.
Other than the above, I believe that the reason there is a delay is more related with:
1. Misjudgement of the demand, which of course -given the extremely small volume of the "traditional" products- is quite difficult to predict or measure scientifically, given that the facts that the marketing analysis had no previous data to refer on.
2. "Rushing to be first in the market" since undoubtly, Hassy had more information than any other traditional MF maker about Fuji's GFX series of cameras introduction... A hint for the later is Hasselblad finding another supplier for making their X1D lenses, since keeping on with Fuji, could lead in similar designs for lenses for the two camera systems. OTOH, there is an obvious (IMO) effort, for Hasselblad to differentiate the X1D from Fuji's introduction, leading the two cameras to share only the word "mirrorless" as common feature...
Never the less, the MF camera market will expand significantly (maybe to even multiples of the current volume IMO) due to the introduction of the two cameras... If anything, the impact that the GFX had at Photokina was of a size that many couldn't recall happening in previous Photokinas and the X1D had quite an impact too (in proportion) as to suggest a "bright" marketing future for MF....