Well, clearly, it didn't happen again because the narratives moved away from knights and princesses and all that. I miss that setting. I like that aesthetic and I miss it being part of FF. As far as the knight being the MAIN character, it's hard to make that work because of the character restrictions inherent in being a knight. It's akin to the lawful/good issues you get with Paladins in D&D. There are things that a knight/paladin just can't do/won't do. It restricts the narrative. I like the way FFIX dealt with that problem, with Steiner vs. Zidane with Dagger in between.