Check out USA Today's Sunday section in the paper.
They talk to the creators and cast of "Lost".
They Gave clues what to expect next:
SPOILER ALERT:
DO NOT READ BELOW IF YOU DON'T WANT ANY CLUES.
Creator J.J. Abrams Quotes:
"The population of the island will be shaken up. Not everyone will be coming back and new people from the 48 survivors will be stepping up as regulars. Also, the survivors have explored almost none of the island, so next year becomes more mission driven and the inevetible fractions aspects of society-building begin to arise.
AS FOR THE LAST EPISODE:
"We have managed to pull off a cliffhanger that is emtionally satifying but demands that people will talk about it all summer... it's a "Who Shot J.R." moment. The end of the season is unbashedly mindbendingly shocking."
SOUNDS GOOD TO ME!