I'm so glad they made the final goal (effectively) as day/night cycles are something I do really enjoy in games. It felt so magical in Ocarina of Time, and added a real sense of adventure to Dragon Quest III when night would fall when you were in the middle of a mountain range and all the enemies suddenly got a lot tougher - as well as arriving at a new town at night and heading straight for the inn. I'm sure Original Sin will do it more like those games than the pretty bland way it's done in Morrowind and Oblivion, where it's just "idiots wandering around aimlessly at day, less idiots wandering around aimlessly at night".