Hello folks,
After quite a bit of time, I believe I've successfully created an uncensor mod for all the mosaic-censored ero scenes in Fate: Hollow Ataraxia. I at first tried to find volunteer artists to help, but that was mostly unsuccessful. In the end, I ended up hiring an artist (JB Random) to create the uncensored scenes for me. I've now compiled it into a working .xp3 patch file.
I've done some testing as well, though since I haven't finished the game completely yet I haven't been able to test every scene in-game. However, all the ones I did test worked just fine, and there's no reason to think the rest would be any different.
The patch works alongside the English translation patch with no issues - the only patches that would cause problems are those that remove or alter the ero scenes in some way.
I'll probably create some torrents later, but for now you can download the mod from here: www.thornyrosestudios.com/fhamod.html