NHK has announced that the Attack on Titan The Final Season Part 3 anime will air in two parts. The first part will air in Japan on March 4, 2023, and the second part will air later in 2023. NHK has not confirmed the length of each part, but it lists the March 4 airing as a “special broadcast,” which hints that each part might be an anime special instead of multiple episodes.
The Attack on Titan The Final Season anime premiered in Japan in December 2020 and aired for 16 episodes. FUNimation Entertainment and Crunchyroll both simulcast the anime with English subtitles. Adult Swim’s Toonami programming block began airing the anime in January 2021, and FUNimation began streaming an English dub in the same month.
Attack on Titan The Final Season Part 2 premiered in Japan with Episode 76 on January 9, 2022 and aired for 12 episodes. Crunchyroll and FUNimation simulcast the second part as it aired in Japan.
The first season of Attack on Titan premiered in April 2013, and the second season premiered in April 2017. The first part of the third season premiered in July 2018, and the second half premiered in April 2019.
Source: ANN