Currently the language list has an "Edit links" at the bottom that uses Wikidata to manipulate those. Currently, users can only add new languages if the article already exist for the language. User expectations will be to be able also to create it (from scratch or as a translation) if it does not exist.
As a user<i>, I can create new translations from Wikidata</i>//<i>, so that the language management is complete</i>.//
- //The user can create a new translation from wikidata item view.//