Hello, thank you for your idea!
Unfortunately, we will not be implementing this. The server has tons upon tons of messages and simply translating them would take a very long time - plus we would need French-speaking translators to make sure the translations are intelligible and clear. We've also got many people from around the world and we'd need to translate the server into many other languages. Also, we've got a lot of our own lore terms that would be difficult to translate.
Regards,
Dance