Square Enix will be releasing three 15-second commercial sometime on Friday, December 21st (JST). Kingdom Hearts director Tetsuya Nomura didn't provide an exact time on his tweet back on December 7th. Please note that this could change.
This is the 2nd wave of commercials that Nomura has shown over the past week. A 30-second cinematic commercial was shown for Japanese movie theaters back on the 16th and the Final Battle trailer was revealed on the 17th.
We will keep you updated.
UPDATE [Dec 21, 2018]: The commercials have been released!
The commercials were privatized before being made public again due to some unintentional content present in the third commercial. As per our spoiler policy, we will not be reporting on the specifics of the removed content.
The first commercial has been dubbed as the "Friend" version.
[CM1] Evening. We are about to post the 3 different TV commercials. If I paste the links into one post only one video will show, so I hope you don't mind me posting them separately. First is the "Friend" version. -Nomura
The second commercial is the "Battle" version.
[CM2] Next is the "Battle" version. These 3 commercials will begin airing on broadcast TV from early January next year, but on Dlife they will be showing up from midnight. -Nomura
The third commercial is the "Story" version.
[CM3] Last is "Story". WRT CMs, on top of the 30s & 3x 15s there is now suddenly 1 more coming, though editing hasn't started. More info is coming, so please wait for various upcoming official announcements. Ok, see you various upcoming times. -Nomura
According to Nomura's last tweet, another promotional video for Kingdom Hearts III is planned for release! According to the wording of the tweet, it seems this will be another commercial.
[0:02] Mickey: “You don’t have to handle everything alone, Sora.”
[0:05] Donald: “We are heroes too, look! ”
[0:07] Goofy: “Together!”
[0:09] Sora: “We’ll always be together.”
[0:09] Sora: "Here they come!"
[0:01] Sora: "You think it’s that easy to take someone’s heart?"
[0:05] Kairi: "This battle will be different than the others."
[0:08] Riku: "I believe that you will never give up!"