As far as I know, the first comparative test shots of the new Zeiss ZF 25mm f2.8 have just been published at 16:9 here . . .
They have been extracted from a larger sample review published by a Flickr member who had several days hands-on time with sample 000009 directly from Zeiss in Germany. It was tested against a number of other lenses, notably the 24mm AF and 24mm f2 AIS which until now have been the best available to Nikon users.
Despite occasional focusing imperfections, I think we can see enough to have very high expectations of the ZF25 when production versions become available in December/January. Unlike the ZF85, it appears to offer significant performance benefits over the nearest Nikon equivalent.