I think the new season of LOST will start out much like the end of LOST: Via Domus ended. I think there was a very specific reason the game ended with all of them at the plane crash again and I think that when the new season starts we'll see that Jack wakes up much like he did in the Pilot at the plane crash of Oceanic Flight 815. I disagree with Faraday when he said they could change the future, beacuse if they did Locke would've never came onto the island, and Jacob would still be alive. I think that all the things that happened with Locke and Alpert at the end of Season 5 really did happen regardless of what happened with Jack because you have to remember that Jack and the Losties arn't creating new things in time, because they were always there in the 70's with the Dharma Initiative, the photograph that Sun and Lapidas found proves it. The only thing that will change now is that the Plane will crash as it in! nevitably has to, and Jack will be pitted against an 'undead' Locke in the struggle of Good vs. Evil, which the show has been aiming at this entire time. And just like Miles said, the nuclear blast was the actual incident the entire time.