For sure there will be some people interested in supporting the localization of Stonehearth into different languages, not only our Spanish friends.
What I would love to see is some kind of a joint approach from the community. Instead of ending up with various half-completed translations, it would be great to have only one, where everybody who is interested is contributing.
Not sure how something like this could be facilitated… apart from having Radiant to lead each translation and e.g. appoint a team of people who are working on an “officially supported” localization, which will be distributed with the game.