-They go down the hatch and right into Twilight Zone creeipness.
-Danielle has been on the island 16 years, despite the inconsistent iterations of her message.
-There are no nanobots on the island.
-Rose will definitely return in the second season.
-There isn't a second plane from Sydney to L.A.; there is only one Oceanic 815.
-The numbers become a driving and fundamental plot point of the second season.
-The identity/past of Jack's wife will be revealed early in the season.
-Julie Bowen (Jack's wife) has already filmed an episode.
-How Locke became wheelchair-bound will be revealed.
-What exactly Kate did to become one of America's Most Wanted will be revealed.
-Hurley's pre-lottery existence will be seen through flashbacks.
-How/why the plane crashed will be revealed by the finale of season 2.
-Ana-Lucia will likely play into the Jack-Kate relationship.
-The encounter between Jack and Ana-Lucia at the airport was not accidental.
-Charlie and Locke will re-explore their relationship; Locke will once more be his mentor.
-Charlie will struggle with the surplus of heroine on the island.
-Aaron will play a big part in Charlie's life on the island, as will Claire.
-Charlie will start contributing to the group more than he did in the previous season.
-More people will be found on the island.