Unofrtunately the devkit for our first game makes it really time-consuming to add new languages. We did improve it a lot in the newer games, and now we can do that in a way, way simpler way.
So... We're sorry, but we won't be doing more translations for delve. But if you're interested, Hitokiri 2 will use this new devkit and will allow for more translations. That being said, it's gonna be a bit before that is ready. Maybe next year?