As for season three of the show itself, co-creator and executive Damon Lindelof said: "The sort of big fundamental 'What's-in-the-hatch?' question we feel we want to be addressing in season three is: Who are these Other people? What are they doing on the island? Why have they been taking us? Why did they take Walt? Like, what's their story? And by the end of season three, in much the same way that by the end of season two you knew the story of the hatch, ... I think [people] will have the same level of comprehension for the Others, and the doors will be blown off the show in a really fundamental way, a way that we've started ... setting up in our finale in season two and will begin to sort of creep its way back into the show again."
Source: SCI Fi Wire