yeah there has to be a three. but I speculate that the three armored characters might to be sora, riku, kairi. Each has the power to weild a keyblade, two guys and a girl, and the armor colors. but it's just my guess. also note some of the easter eggs
like DIZ (a shorter way to say disney), YEN SID (disney backwards), the restoration commity cards (oddly resemble disney hotel membership cards LOL). the sea salt ice cream is one of tetsua nomura's favs lol, just like his obsession with lions and the lion king world.