Yeah it'd be odd for them to just skip out on the anniversary year, though not totally unheard of. Didn't they completely ignore some of the FF game's major anniversaries? I guess, KH being Disney's biggest video game series, might help prevent them from ignoring it's 20th.Jump Festa or SE will announce an event in 2022 for a mega KH blowout extravaganza for March.
A project will absolutely release in 2022, though. If they are smart to get the full anniversary logo use, there will also be a new concert tour for 2022/2023 and a bunch of smaller games and projects lined up.