The final season of Alicization begins in April 2020
When Kirito and his gang aren't playing around with the Phantom Thieves, they're fighting the War of the Underworld in the last cour of the Sword Art Online Alicization TV anime series. Released via the official Sword Art Online Twitter account on February 12, the latest trailer for the upcoming series shows Asuna, Leafa, and Sinon preparing for the final fight!
The first cour of Sword Art Online Alicization War of the Underworld aired from October 5, 2019 until December 28, 2019, with the last cour – the final for all of the Alicization saga – beginning its broadcast from April 2020. Crunchyroll is currently streaming the entire Sword Art Online TV anime.
Source: Sword Art Online on Twitter
Daryl Harding is a Japan Correspondent for Crunchyroll News. He also runs the YouTube channel about Japan stuff called TheDoctorDazza, tweets at @DoctorDazza and posts photos of his travels on Instagram.