The Lost Memories: Song of Valkyrie is a spin-off story RPG game that takes place in the world of Ragnarok Online. Players will assume a character from the real world who got transported to Midgard. Throughout your journey, you’ll meet new friends along the way who will join your party. The game will use the classic RO sprites and assets but will be modernized to an extent. Since the game seems to focus on the RPG side of things, Lost Memories will have a linear story that players will follow much like console JRPGs.
More info about The Lost Memories: Song of Valkyrie will be revealed during G-Star 2019.