via Personal View.
PenAndTell and ThePhoBlographer confirmed that the BIG Shift 15mm f/4.5 MFT lens will not be released. As you know the lens is (now was) based on the [shoplink 33839 ebay]Voigtlander Heliar 15mm f/4.5 (here on eBay)[/shoplink] design. But the manufacturer claimed that “the 15mm Voigtländer didn’t work as expected“. They are now “currently looking for other solutions to make the lens work“.
Let’s see if they will fix it any time soon…