https://wccftech.com/kingdom-hearts-4-quadratum-ue5/ > During a 20th anniversary event for the series in Japan, Square Enix officially revealed the next installment in the Kingdom Hearts series, Kingdom Hearts 4. > The 4th installment in the beloved franchise was announced via a debut trailer at the ending of the anniversary event. The trailer shows a mature Sora, as well as Donald and Goofy, thereby seemingly departing from the cartoonish 'cute' style of the previous games in the series. The trailer for Kingdom Hearts 4 opens with the following line: "f this isn’t the ending you desired- if it brings you despair- then leave this world for another”.