The official website of the IDOLiSH7 anime has announced that the third IDOLiSH7 anime season, which is titled IDOLiSH7 Third Beat!, will premiere its first half in July 2021.
The third season will run for two split cours. The staff from the previous two anime will return for the third season. Makoto Bessho is again directing the new season at TROYCA, and Ayumi Sekine is back in charge of the series scripts. Ei Aoki is returning to supervise, and Kasumi Fukagawa is again adapting the original character designs by Arina Tanemura.
The first television anime based on the IDOLiSH7 smartphone game premiered in Japan in January 2018 and had 17 episodes. Crunchyroll simulcast the series as it aired. The second season of the main anime premiered in Japan on April 5, 2020. The second season was delayed starting with the fifth episode due to the state of emergency declaration against the spread of COVID-19. The season resumed with Episode 3 on October 4, 2020.
Source: ANN