This is what Nomura said about the next Kingdom Hearts title, from his interview with Famitsu a few months ago.
— ☆オードリーAudrey☆ (@aitaikimochi) November 18, 2020
The KH team is already working on a new title, so whatever they announce could potentially be released in 2022, or at least coincide with the 20th anniversary. https://t.co/IuK7xTdHzE