I'd say that the German translation is about 70% done. This doesn't include data, of course. This is the text that's displayed in the applications and the printable sheets. The only data that's translated in this way are item descriptors, characteristics, and skills. The rest will need to be modified. I believe some of the translators are also putting together data sets with translated data, but it probably won't be complete.
Currently, you can "translate" your own data by adding descriptions and names in your native language. You may want to check to see if someone's already made a data set with translated text.
We have translated above 80%
And there will be a DataSet for German and afaik it is nearly completed.