Disney held a D23 Expo event in Japan and had some new Kingdom Hearts info:
First Kingdom Hearts content is coming to Final Fantasy Record Keeper:
Second, a new trailer for Kingdom Hearts III was revealed:
Third, Utada Hikaru is contributing a new song titled "Oath" for the Japanese version and "Don't Think Twice" for the English version to KHIII
Finally, the release date for KHIII will be revealed at E3. Still planned for 2018.