The game was formerly known as "Sword Art Online: Alicization Rising Steel" but has renamed itself to "Sword Art Online: Unleash Blading". This rebrand is in part due to the game incorporating the “Moon Cradle” arc, which is a continuation of “Alicization”, an arc that has yet to be animated at this point of writing.

Im gonna add a bit more info here: It has also changed its name because Alicization arc has come to an end, and there is only so much you can do with an ended arc of an anime, to prevent the game from beeing repetitive they changed the name to also include progressive.