The Batis 85 is very interesting to me. With that purchase, I could sell my A-mount Sigma 85/1.4, which is already a beast without the LAEA4. Bummed to hear about distortion, but I wonder how often it will really appear in my images.
I'm more torn on the wide side. The 28 is attractive due to the speed and the converters, which might be fun/useful for not a lot extra. I realize I might give away a bit in ultimate quality, however. The 25 is attractive because that's what I have in my M-mount and R-mounts already and I'm used to that FL. Plus, it's the Batis design, which I find compelling for some reason.
The great thing about these cameras is that aside from all this mulling over possibilities, I can just mount all the manual-focus and AF A-mount lenses I have now and get excellent results and have fun doing it. Really the best of all worlds, I think.
Nutty side-effect is I'm ending up with even more versions of the same focal lengths of different brands, since they're all shootable on this camera. I think I have six 50's I can mount on this camera now. Geez. There needs to be a refactoring someday...right.