I propose to approve this. The activity seems sufficient to me: https://toolserver.org/~pathoschild/catanalysis/?cat=0&title=Wp/tly&... and the most-used msgs are translated as well < http://toolserver.org/~robin/?tool=codelookup&code=tly%3E.
It will however be necessary that the person who verifies the content says something about the writing system: According to Ethnologue, Arabic and Cyrillic are used, but the test-project is in Latin script. This is a comment from the editors about it: https://meta.wikimedia.org/w/index.php?title=Requests_for_new_languages/Wiki...