According to wikipedia, Masyaf (assasins starter city) was lost in the 13th century to Hulugu Khan, I believe hes chinese at least he looks it or persian, either way both tie in with the ending of assassins creed cause of the pictures. Maybe this could tie in with assassins creed 2? (the city was fought back by someone in the late 13th century who chased away the people who took the fortress).
Maybe this could mean the possible japan/china scenario where the assassin is there in the 16th century to assasinate the emperor? as crazy as it sounds.