Update:They released the trailer!
During the Kingdom Hearts Union X[cross] Fan Event currently taking place at the House of Blues in Anaheim, California, some details on 'Kingdom Hearts III' emerged, specifically in regards to the Game and Watch style minigame teased during D23 two months ago. It has been revealed that in addition to a Giantland-themed minigame, there will be over 20 Game & Watch minigames in KH3 inspired by old-school black and white Mickey Mouse shorts, and the attendees of this event were able to play some of those minigames:
In addition to minigame news, there were reports from those in attendance that a KH3 cutscene related to the minigames was shown taking place in Twilight Town, with what appears to be the return of Hayner, Pence, and Olette with new outfits:
The event is still ongoing, so we'll be sure to report any major news relating to 'Kingdom Hearts III' or 'Kingdom Hearts Union X[cross]' should they come.
More Details on KH3 Game & Watch-Style Minigames + Possible Return of Twilight Town Trio