A new trailer has released for the second half of Sword Art Online: Alicization, referred to as “Sword Art Online: Alicization – War of the Underworld”. Taking place in the aftermath of Kirito, Alice, and Eugeo’s battle against the Administrator, the second season will see Alice prepare for the battle against the Underworld alone, as Kirito lies unconscious thanks to an attack knocking out the power on Rath, the secret area holding Kirito’s recovering body.
There’s also a new key visual, shown below.
This is the third television series adapting Reki Kawahara’s Sword Art Online light novel epic, following the original Sword Art Online and Sword Art Online II. Currently, Sword Art Online: Alicization – War of the Underworld, is scheduled to join the other Fall series releasing this October.