BONES and Toho Animation have revealed the trailer for the sixth season of My Hero Academia, which gets into the popular war arc between the heroes and the Paranormal Liberation Front. This arc ran for 53 chapters in the manga, and is one of the most recent arcs of the series, only wrapping up with the release of Chapter 306 in March 2021. With that in mind, it’s not surprising this season isn’t airing in the usual Spring spot, but instead won’t be making an appearance until the Fall.
However, there also doesn’t appear to be that much more remaining to the manga, with creator Horikoshi Kohei recently saying that “if all goes as planned”, there’s only one year left of My Hero Academia. This comes courtesy of a translated message from Twitter user @aitaikimochi;
In Horikoshi's message for the My Hero Academia super stage event at Jump Festa 2022, he says if things go according to plan, the story will be complete within one year.
If things don't go according to plan, he'll have Deku's voice actor read another letter of his next year lol. pic.twitter.com/3fKwD1OmgA
— ☆オードリーAudrey☆ (@aitaikimochi) December 19, 2021
Considering where the storyline is, this doesn’t seem outside the realm of possibility. However, this doesn’t preclude Horikoshi from doing a sequel manga based on the characters either, which has become quite common in anime and manga recently.