Dengeki Online and Famitsu both have interviews with Tetsuya Nomura that will be released in the respective magazines on June 25th in Japan. Esuteru was able to provide a few details from the interview, which Goldpanner has kindly translated, which you can read below.
From a Dengeki Playstation interview:
(About the battle gameplay of KH3)
Tetsuya Nomura: "The battle gameplay returns to commands such as 'attack' and 'magic' rather than deck commands. I thought that king of gameplay styles had the royal right to be used in a numbered Kingdom Hearts title."(About worlds)
"I can't speak in detail, but apart from Olympus Coliseum, nearly all the worlds are new."(About the scenario)
"Since KH3 was to settle the final confrontation with Xehanort the general framework was already decided, but it's not the end of the KH series."
"I'm worrying over how to bring KH3 to a close. I have already decided on my plans for the directions of the characters fans care about. I don't want to make something too short that only settles the main dispute."(Release date?)
"We've reached an agreement, but I still can't say anything. I plan to give new information at the Kingdom Hearts Fan Event that will be held on the 3rd of November."
From a Famitsu interview:(Sora etc moved so smoothly in the trailer)
"For this title we are implementing free running so Sora's mobility isn't ordinary (laughs). Most things can be overcome with jumping and free running, and you can charging up walls and such."(Development stage?)
"It's moving along steadily. I'm currently deciding what to do about the ending and secret movies and such."
