Sword Art Online: Blade Master is an upcoming story and reimagining and revision of Sword Art Online: Clashing Blades.
Blade Master is set to be a retelling of Sword Art Online: Clashing Blades, following the same basic storyline, but involving more details, altered, new, or removed plot points, and revised characters.
The story focuses on Ishi Haseo, and his journey in Sword Art Online.
Blade Master - Arc I - Prologue - ???