You can just read previous posts, Andrei wrote a post about translations.
"The primary task is to make an up-to-date and complete version of English documentation, and while we work with it only. After it is ready, in a few months according to our plans, we will launch a similar system for documentation translations" (from blog post)
The previously translated documention was outdated. And now community members will be able to translate as many articles as they want. Not the entire documentation by one person like it was done before.