Kingdom Hearts series writer and director Tetsuya Nomura says the script for the upcoming fourth entry in the series is almost twice as long as the last numbered entry, and yet there were still more parts he wanted to include but was unable to.
In an interview with Famitsu that's been translated by GamesRadar+, Nomura talks about the voice actors and recording schedule for Kingdom Hearts 4. The Japanese voice cast is apparently already complete, while the English cast is reportedly 60 - 70% through their parts.