IX is definitely one of the Final Fantasies that I would love to see a sequel too and I think they left it open enough to have reason for a sequel. Is Gaia safe? What was Zidane doing for the years that he was gone? (I say years because of the length that Garnet's hair was during the last FMV compared to what it looked like when they left the Iifa Tree) You now would have Vivi's son's, the Steiner/Beatrix relationship, and Garnet is now Queen, is Zidane the new king? I'd be so excited to learn some of the answers to those questions.

I am kinda hesitant about the FF XIII sequel but I most likely will buy it to see how they are gonna do it.