As I keep saying, I really hope they dont do a reset. But I was thinking earlier that perhaps those flashbacks where Jacob was seeing all our losties in the past, were not in fact a simple flashback where they always happened, but rather him seeing them in the altered timeline. Which would show why Jack's story about counting to five was vastly different to the one Jack told in episode 1. Just a thought, wondered what you thought? I'd prefer it though if it is indeed what we currently think, and that it always happened that way.