I got burned out after Birth by Sleep. (Played through 1, CoM, 2, and BbS.) I didn't play the 358/2 Days, but that one seemed interesting. I thought 3 was supposed to be the conclusion (Like Metal Gear Solid 4, yeah?), but sure enough, KH4 was announced in 2022.
Protip: If you play 1, CoM, and...