And the Lostpedia Blog deconstructs some of the opening scene from season five for us... but warning, there be potential spoilers below (depending on what your definition of spoiler is).
We saw Chang wake up with a woman - so it's probably not much of a stretch to assume she might be Lara (though the ABC press release helpfully credits the actress as playing "Woman"). Then we saw the baby, who we knew existed from the Comic Con video. I'll let you all speculate about who the baby might be in this crazy time messed up world... but my money is on Charlotte.My only question is... why would Faraday tell Chang about the purge and about losing his hand? Wouldn't he think that this would mess up the space-time continuum? Did he have some foreknowledge that he would and should interact with the Dharma Initiative?
Furthermore, it seems pretty much proven now that the man behind the camera is none other than Daniel Faraday. Faraday was always the front runner because of the voice, and now with the opening S5 scene - we can all accept this chain of events. We can also somewhat explain why Faraday describes Chang's comments as "useless" in the video - as his speech in S5 about being unable to change the future would naturally make him cut-off Chang's pleas about us finding ways to change the timeline.
Lastly, we can gather that Faraday must make some form of contact with Chang in his time, and that he will tell him intimate details about the DHARMA Initiative's future (including that Chang will lose a hand judging by the way he cradles it).
So what will happen next? We can be sure to look forward to 1970s DHARMA scenes for sure - which personally I think is very exciting. What's even more interesting though is the possibilities it throws up - will it be Bernard who leaves a glass eye in the Arrow station? Will Faraday help build the sonic fence? Will Juliet and Sawyer be the Adam and Eve skeletons? With time relative, anything is possible!