Premieres Fall 2024. Check out the ANN article for additional information. Synopsis for the fifth season from AniList:

Goddess Festival—A fruit festival that brings the labyrinth city of Orario to life. Goddesses symbolizing fertility are enshrined on the altar, and among them is the Goddess of Beauty. Bell Cranel, who has survived and returned to his daily life from the dead depths of the dungeon, is here and ready to enjoy the bustle of the Goddess Festival until he receives a letter from a girl at a small bar in a corner of Orario—“To Mr. Bell, please go on a date with just the two of us at the upcoming Goddess Festival. From Syr.” Syr’s single-minded determination will drive both Bell and the labyrinth city crazy. Meanwhile, the Einherjar, the warriors who claim to be the “strongest,” are now suddenly on the move…