In the future, there will be options to have US in ALL languages, as long as there are people able and willing to translate.
I hope I am not overstepping my boundries reposting this private message from a dev:
"Well, we are making moves towards translating into multiple languages, but the way we plan to deal with this is probably through crow sourcing, so we essentially change the code to use keywords acting as lookup values in a translation database and then we make that database available for editing by the public.
That way any language can really be supported, as long as a single user takes the time to translate those keywords."