Those character models come directly from the Sword Art Online: Alicization Lycoris game that’s currently in the works, and Bandai Namco shared another character model on Twitter.
Sword Art Online: Alicization Lycoris is in the works for PS4, Xbox One, and PC.
Yesterday we posted about an aspect of the 10th anniversary Sword Art Online exhibit that uses motion-capture tech to let you battle goblins alongside 3D models of Kirito and Eugeo.