I think the next episode (of the new season) will feature Locke, Eko and Desmond somewhere else, perhaps where the 'Others' are trying to get away from. We now know Henry Gale pushed the button to reset the timer, which means he feared the anomaly too.
Is the anomaly God..? The statue foot is the thing that puzzled me the most. The hatch being fake didn't shock me too much. Why mister crabs wore the suit to retrieve Desmond worries me, although later its clear he knows nothing is wrong, so did he by chance just find out, or was he told? Oh well, it's only 4 months, right? That's nothing considering the amount of time in between some of the episodes.