The content of the develop branch doesn't reflect latest version of language packs as one would probably expect (even the source language, en_US, is not up to date if I'm not mistaken).
Since there is no "develop" version for languages packs I think this branch should be removed or should be kept minimal, maybe with only an up-to-date readme.md file pointing to the latest translation (version branches) for each language represented. Would that be a good idea?