The official website for the fourth season of the My Hero Academia anime is listing that the anime will have six home video releases for a total of 25 episodes (episodes 64 through 88 of the overall anime).
The anime premiered in Japan on Saturday, although in some regions the show did not air on NTV due to emergency broadcasting due to Typhoon Hagibis (Typhoon 19).
The new season covers the manga’s Hero Intern arc that began in the 14th volume. Funimation, Hulu, and Crunchyroll will stream the season as it airs in Japan.
Blue Encount (Banana Fish, Gintama 2015 and 2017) are performing the opening theme song “Polaris,” and Sayuri (ERASED, Golden Kamuy) is performing the ending theme song “Kōkai no Uta” (“About a voyage”).
Source: My Hero Academia anime’s website