Well, characters in any form of media are always going to fall under some sort of category or archetype. I don't really understand why people complain about it. Yes, it's nice when there's a very rare unique character, but I don't expect any game to break the mold any time soon with some new character type. These stock characters are inevitable.

I don't really care. I hope FFXIII's main character (not Lightning) won't be a ditz or some 'omg save me!!11one1' character, but I wouldn't really mind either way. Although the idea of new character types being made is very interesting. With FFs being made with different development teams each game (like Tales), it's certainly possible some writer will have some unique ideas.