User blog comment:Master Sima Yi/Assassinews 10-05'12 — World Gameplay Premiere/@comment-88.91.102.25-20120521072032/@comment-1153722-20120521081912

They didn't necessarily say they weren't gonna do it. Alex Hutchinson said in an interview that World War II, Ancient Egypt and Feudal Japan are the 'worst' and 'boring' settings for Assassin's Creed because so many people want them and there are already so many games set in those periods. To be honest, I find that most games set in Feudal Japan are way too unrealistic (blond haired Japanese people, huge eyes, big boobs, you get the gist) and an AC game would never be anything alike them.

Though you also gotta consider that Corey May said in another interview that he had an idea on how to make Feudal Japan 'work'...