Just a quick few interesting facts that the writers confirmed on Jimmy Kimmel
For anyone who didn’t see it.
1. Fake Locke is the smoke monster.
2 It’s “fate” that Michael and Walt weren’t on the plane.
In fact, it should be significant that many of the characters weren’t, and the differences in those that are.
3 When Jimmy said “its obvious that Jacob was resurrected in Sayid’s body” or somethign to that effect, and the lost writer’s looked at each other silently and said something like, you’re thinking along the right lines, but youre theory will evolve in the next few episodes.