Moroni has had a vision of the future, and his current mindset is looking forward to that future. He has addressed Joseph Smith directly, and now is addressing the general future audience. He notes: “I speak unto you as if ye were present.” This happens more in Moroni than it did in Mormon’s writings. While Mormon also had asides to the future, they are more frequent and much more directed in Moroni’s writings. Moroni is alone in the world, and he has a mission to perform. Clearly part of the mission he knows that he will perform consists in caring for the plates and giving them to Joseph Smith. This revealed purpose is Moroni’s most important task, and so clearly on his mind that he is focuses on the future. He speaks to the future because his thoughts and the intention of his heart is so directed toward that future and his personal role in it.