Speaking to Reuters Japan, Square Enix CEO Yoichi Wada told the news service that the publisher expects Final Fantasy XIII to sell more than its predecessor, which has sold close to six million copies worldwide since its release in 2006. According to Andriasang, Wada remarked that he's hopeful recent price cuts on PS3 and Xbox 360 will drive up sales of the game when it arrives in Japan on December 17 and the rest of the world next spring.Considering XIII is this console generation's first traditional Final Fantasy installment, we don't imagine Square Enix will have any problem moving units. After all, to hit the six-million-sold mark, only about 11 percent of the combined worldwide PS3 and Xbox 360 userbase will need to buy a copy. [Via Andriasang]