➀ Square Enix has cancelled the development of Kingdom Hearts: Missing Link; ➁ The game was initially announced as part of the series' 20th anniversary; ➂ Despite efforts, the company found it difficult to provide a long-term satisfactory service; ➃ Kingdom Hearts 4 remains in development.

➀ Many fans were disappointed with the ending of Kingdom Hearts 3; ➁ Director Tetsuya Nomura aims to conclude the 20-year story in Kingdom Hearts 4; ➂ Nomura plans to retire after completing the story.