Did you think about having both a Latin transcription and the Gothic UNICODE version?
I cannot promise that they would be accepted, but you can try to submit your changes via gerrit and git. That means, for MediaWiki to alter the source file:
according to the new message base:
and submit a patch.
If that is too technical and/or beyond your capabilities, please approach me again - e-mail welcome - there may still be an option.
This could be a possible solution Blissenbach, I could work on it well without the translation tool with which it takes a lot of time to correct one thing. This could be a solution. What does Siebrand think about it? Maybe we szhould remove all the current translations in the meantime, they're crappy and I don't want to spend time corrdcting them, I 'd rather do it from scratch.