During the stage event at Dengeki Bunko’s “Aki no Saiten 2017” event in Tokyo, it was announced on Sunday that Sword Art Online will be receiving a third television anime series that will follow the light novel’s next major arc, Alicization. The Alicization arc is the 4th main arc in the Sword Art Online series. The new series is titled Sword Art Online Alicization.
In addition, a new visual for the third season of Sword Art Online was revealed on the official Twitter account:
and the trailer announcement: