I kind of have the thought that it's making up for a future game (the remake of Gen III). I've been thinking that maybe they chose to put two games for the Black and White ramakes to change it up a bit, and instead of getting two games for Gen III in Gen V, they're going to make a remake of Emerald. Though, I doubt that this is accurate. It's probably just for the sole purpose of making more money, but I always like looking for deeper meanings into actions!!