Dont know but other kh game like birth by sleep,358/2 days, drem drop distance didnt took 5 years after announcement
Those side games are quite big too..

But yeah maybe 5 years.. I notice kh 1 and 2 game is much longer than those side games

I remember that the director of kh said he want to focus on final fantasy not sure which title then he will focus on kh 3..is it ff versus?

meh just play KH1 and KH2, others spinoff can skip