After spinning it's wheels a bit in Season 3, it feels like it has a clear focus now. In the past we had all these different mysteries piling on top of each other with no idea when/if they would ever be resolved, but now it feels like the series is moving towards...something. How did Jack, Kate, Hurley, and three others get off the island, what happened to everyone else, and what happened that was so bad that they afraid to talk about it to other people and Jack and Hurley become traumatized by it? Finding out the answers to these questions will give us something look forward to, while also still possibly giving the writers some room to maneuver for some later episodes (Do they ever go back to the island, and what is it they want to do when they get there?)