As some of you are aware, and probably many aren't, VaultWiki 4 contains a new language system, and is a complete rewrite anyway so mostly every phrase is brand new. There are already more phrases in the development version of VaultWiki 4 than in the current version of VaultWiki 3 and we might not even be 75% through the phrasing process.
What we would like to get a sense of is what non-English languages are people using VaultWiki with on their site. We want to start adding better multi-language in VaultWiki 4, including translated XML files, and internal functions designed to better handle each language on an individual basis.
However, there are thousands of languages, so rather than hold up VaultWiki 4's release over this point, we plan to release official support for 1-3 new languages with each update. By having a list of the languages people need, it will really help us to decide which languages to start supporting first.
I've added a poll to this thread, but if a language you need isn't on the list, don't hesitate to mention it in the thread so we can add it. The current options were composed based on a combination of VaultWiki's existing demographics and Wikipedia's list of most natively spoken languages.