nothing to see here said:
Of course we also learn that Echo died off camera (i.e.Adewale Akinnuoye-Agbaje was written out of the show). That means that ALL of the new survivors (except Bernard, who hasn't made an appearance at all in season 3 yet) that we invested so much in last season have now been completely written out of the show.
For the record, Eko died during the third episode of this season, on camera, killed by a combination of the hatch explosion, polar bear attack, and the black smoke monster. As Locke stated "The Island killed him." Easy to forget since it seems the whole season has focused on Jack/Kate/Sawyer in captivity.
I agree to some extent about heavy investment in a set of characters who have now all been killed off. But looking at a TV show, especially a serialized one like Lost, as a artistic project spread out over *years*, well, life happens and project plans have to be altered.
However, Eko did have a lasting effect as a force for redeeming Charlie, and even getting Locke back on the right track. Libby's death had a profound effect on Hurley. There are rumors that Ana Lucia will be back in several flashbacks, so who knows how she'll fit into the ongoing plot.
Whether or not Desmond actually time travelled (I think not), or it was all in his head, the question remains:
Where did his clothes go?
Personally, I think Des was taken by someone after the explosion and messed with, and the jewelry shop lady was really there, possibly being interjected into his fantasy to guide it. I think we'll see her again at some point. Des may have been strapped into a Clockwork Orange chair like Alex's boyfriend last episode while he thought he was time travelling. Afterword, he was dumped back out in the jungle. And whether he time-travelled or not, he does seem to have precognative flashes. The whole "Charlie is going to die no matter what" thing is just another riff on the the Free Will vs. Fate theme prevelant throughout the series. Maybe Charlie and/or Desmond are being setup by someone on the island to see how they deal with the situation.
I think we may find that both the Lostaways and the Others might be the focus of some experiment. Remember how they discovered that the reports of the observers of the hatch where going to a big pile out in nowhere? So those observers were possibly the subject of an experiment themselves. Same may be true of the Others. I mean, we know there's another group somewhere on the island. Remember the eyepatch guy on the monitor in one of the hatches? The whole setup may be a triple, quadruple or even quintuple blind where the members of the Hanso Foundation never know if they're the subjects or researchers. So we may end up with the Other Others and the Other Other Others, ect.