2P.com is reporting that NCSoft and TenCent have announced a prequel to Blade & Soul called "Blade & Soul: Hongmoon Rising". This will be a completely separate game that will share the game universe, a similar skill system and character relationships. The future ostensibly holds VR support and mobile deployment as well. There is no word if, or when, Blade & Soul: Hongmoon Rising will be released in the West.
To show off a bit of what the game entails, a debut trailer was released.
You can read a bit more at the link above.