I think more translations would be great! The problem is, I don't personally have the time or skills to do it, and unfortunately my source files aren't in a good state to be shared yet. I have no problem if you want to do this.
One of my goals (its coming along slowly, I know....) is to get all my source files into a git repo, with instructions on how to build the final PDFs. I also want to get all the tables organized into different formats (txt, markdown, json) for easy consumption into apps and stuff.
So even though I don't have an ETA on any of that, I expect that translation will be much easier once all that is available.