I was close with Ben.... 
I think that what we saw IS the future. They, or at least some of them, do get off the island. Jack now leading a normal life can't handle it. His one shot a being a hero again, is only a fake one, he caused the car crash. He's turned into his father....
The story now will be the power struggle on the island, is Ben down for the count? Who's coming on the ship? Will the others and the Losties now join forces? I'm guessing we'll see more flashBACKS to the DHARMA stuff next season. After that I'm guessing we'll learn about the "natives".
I'm going to miss Charlie. [:'(]
Here's to next season!