From a NYPost.com article;
Spoilerish themes for Seasons 4,5 and 6 from Lindelof (nothing major);
Lindehof and Cuse were only supposed to do 8 episodes of "Lost." Now that the writers' strike is over, they'll do 13. Episode 7 will conclude with a cliff-hanger, after which the show will take a month-long break. "There will be very significant mysteries answered in the seventh episode," says Cuse. "The eighth episode is non-traditional and the start of something new."
Spoilerish themes for Seasons 4,5 and 6 from Lindelof (nothing major);
"Season 4 is about who gets off the island and the fact that they need to get back. Season 5 is about why they need to get back, and season 6 is about what happens when they get back."
Lindehof and Cuse were only supposed to do 8 episodes of "Lost." Now that the writers' strike is over, they'll do 13. Episode 7 will conclude with a cliff-hanger, after which the show will take a month-long break. "There will be very significant mysteries answered in the seventh episode," says Cuse. "The eighth episode is non-traditional and the start of something new."