Kingdom Hearts 3 has mini-games inspired by 1980's LCD games, such as classic Game & Watch.
Perhaps more importantly, though, it's worth noting that Sora and friends were shown talking to Hayner, Olette, and Pence in what looks like it Twilight Town when obtaining the device. They could very well have an important role to play in the latest entry.
Fans have been waiting for the release of the upcoming title ever since it was announced in 2013 for Xbox One and PlayStation 4.
The new trailer for the most-awaited video game features the Classic Kingdom. Seeing that Kingdom Hearts' offerings are largely similar to Final Fantasy, we can assume a similar outcome for the Disney-themed game.