Ubisoft officially pulled back the curtains on Assassin's Creed Mirage, the next game in the franchise that represents a return to the series' roots, but it also revealed a lot more too. If you've been begging for years for an Assassin's Creed game set in Japan, you're in luck because Ubisoft announced Assassin's Creed Codename Red today during its Ubisoft Forward showcase. While the company only released a small teaser for this game, it did say that it takes place in feudal Japan and that it will give players the ultimate "shinobi fantasy." It's also calling Codename Red the next…