Sony's next big PlayStation 4 exclusive, Horizon Zero Dawn, launches next week. Now, a new report from SuperData claims the game--which is a brand-new franchise--may sell millions of copies this year and go on to become a hit on the level or close to Uncharted 4 and Metal Gear Solid V.Horizon Zero Dawn will shift as many as 6 million copies by the end of 2017, SuperData said.