The first half of Sword Art Online: Alicization aired over two quarters between Fall 2018 and Winter 2019. The second half, subtitled War of Underworld, debuted on October 13. Aniplex is listing eight home video releases for War of Underworld, consisting of 23 episodes in total.
Aniplex of America licensed the anime in North America and simulcasted it on Crunchyroll, Funimation, and HIDIVE. The company plans to ship the first 24 episodes on Blu-ray on April 21, 2020.
An orchestra concert featuring music from the series by composer Yuki Kajiura will be held at the Tokyo Metropolitan Theatre Concert Hall on April 11, 2020.