Ubisoft announced that Ubisoft Montréal is developing Assassin’s Creed II on all current-generation platforms for a scheduled Holiday 2009 launch.
The first Assassin’s Creed game was released in November 2007 to popular and critical success, selling 8 million copies worldwide.

Assassin’s Creed II is the product of over two years of intensive development by the original creative team behind the Assassin’s Creed brand. In a vast open world environment, the game invites players to incarnate Ezio, a privileged young noble in Renaissance Italy who’s been betrayed by the rival ruling families of Italy. Ezio’s subsequent quest for vengeance plunges players into a captivating and epic story that offers more variety in missions, surprising and engaging new gameplay elements, diverse weapons and a profound character progression that will appeal to fans of the original Assassin’s Creed as well as entice players new to the brand.
You can watch a trailer of Assassin's Creed II here. Update: Jade Raymond gave an exclusive interview to German Bild about Assassin's Creed II. You can watch the video on Bild, but it has German Voice Over.