I'm just an admin of the English wiki, not the Spanish one. Looks like it hasn't been touched for a while. You can edit without being an admin, but once you become an active editor, you can pursue adoption here: https://community.wikia.com/wiki/Adoption:Requests
My concern however is, that if you translate some pages from the English wiki to Spanish, once you lose interest it, it will become outdated and not really useful for players. I think it's preferable to concentrate our efforts on one wiki, there's plenty here that needs improving still.