Sorry for the delay in replying... I've seen the thread only now.
The last set of corrected proofs was sent to the publisher by mid-December and the book is now in the printing phase... could be out in weeks or even days, my knowledge stops here (and you all should know that the authors don't usually receive many updates in this phase...).
At any rate, I can safely and completely discard the dates reported by the"Preussisches Bücherkabinett" as being totally incorrect.
Believe me, I would love to see it printed much more than you. At the moment I can only wait a bit more and hope that, when it will be out, it will live up at least to 50% of the expectations...
Thanks for your interest.