Hello,
Mr. Klose personally has shown in a German Magazin (Cine 8-16) that they only have one tool for the cartridge. So: yes, this piece of plastic is the result of their one and only tool.
The (white) prototype was shown before already (created using Stereolithography and no real tool).
This new picture (black cartridges, produced using the real production tool = injection moulding) is shown on the website of Frank Briunsma (S8 Reversal Lab Netherlands) which is a official partner of Mr. Klose. So: yes, it is an official released picture.
I really would like to see a perfect new cartridge. BUT I doubt about the quality of the "new" cartridge looking at those pictures (No precision in the edges, no smooth surface. Some small plastic particles are visible, the corners are not even).
Maik