Toonami announced via Facebook that Sword Art Online: Alicization – War of Underworld will be coming to their anime block starting January 18/19. The anime will take the Midnight time slot meaning that on January 18, when it hits midnight and switches over to the 19th, you can ring in your new day with some SAO action… or just set your DVR and watch it in the morning.
Sword Art Online: Alicization – War of Underworld just finished airing its first part in Japan with part 2 scheduled to begin airing in April. No word if Toonami will air the second part but one would assume they would since they are airing the first part and SAO has always been a staple of their anime lineup.
A teaser graphic was released by Toonami which you can view below: