A translation would be difficult for a game with so much text. Fans might do it as a project, but I don't think there are plans for an official translation. The current focus is developing content for the game, as it is still early in development.
It's honestly not even just the quantity of text, but how that text is stored. There's no single master file with all the text in it, but a ton of different events stored seperately, each containing their own writing. Adding translation options would be great but it'd be a large coding task in addition to all the normal work that goes into making a translation.