Grand Blue Dreaming Season 4 Is Officially in Production — What the New Visual Confirms

Grand Blue Dreaming Season 4 is officially in production. The anime’s website announced the continuation on September 22, immediately after Season 3’s final episode, and released a new production-decision visual.

That is the full scope of the current announcement. There is no Season 4 release date or window, and the production has not yet confirmed its staff, animation studio, episode count, returning cast or international streaming service.

What the Grand Blue Dreaming Season 4 visual shows

The official portrait visual places Iori Kitahara at the center of a photograph while three women stand in front of it. The image carries the Season 4 title and a production-confirmed message.

More importantly, the official news post explains how viewers are meant to read it: the visual hints that the romantic battle surrounding Iori will intensify. That wording supports the broad direction, but not a specific relationship outcome or a complete plot synopsis.

The image is promotional art, not a scene from an episode. It does not establish that every visual joke will happen literally in the story, and the announcement does not identify a manga arc or chapter range for the new season.

Season 3 staff are not automatically confirmed for Season 4

The current official site lists Shinji Takamatsu as director, sound director and scriptwriter for Season 3, with Zero-G and Saber Works handling animation production. Those credits remain attached to the completed third season.

The Season 4 announcement does not say those staff or studios are returning. It also does not publish a new cast list. Even if the core voice actors are expected to continue, that expectation is not a replacement for a formal Season 4 credit announcement.

The same caution applies to distribution. Previous Grand Blue Dreaming seasons may indicate where viewers are likely to look, but Crunchyroll or another international platform has not been confirmed for Season 4 in the official announcement.

When will Grand Blue Dreaming Season 4 be released?

There is no confirmed year, season or date. The official post says further information will arrive through the anime website and its official X account.

For now, viewers have a production confirmation and an early thematic tease: Season 4 is being made, and Iori’s increasingly complicated romantic situation is part of how the series is selling its return. Everything else — timing, staff, studio, episode count, streaming and adaptation scope — remains unannounced.