Kingdom Hearts 4 leads Tetsuya Nomura and Tai Yasue are exceptionally confident that the game will meet its target of a 2027 release. The pair even make comments that development has been the smoothest in the series' history and that it will be ready well in advance.
The gaming industry is no stranger to delays, and when people have had to wait a particularly long time between games, it can be a blow to fans to see the release date pushed back. However, series director Nomura and co-director Yasue seem extremely confident that Kingdom Hearts 4 will make it out in time for its late-2027 release window.