In a 2 hour finale, the third season of Lost ends with an interesting twist in the tale (as has always been the case in the earlier seasons). For the first time in the series we see flashforwards in parallel to the story happening on the island. We are shown events from Jack's life, which at the end of the episode give a hint that Jack and Kate have been rescued from the island, while the fate of the other survivors is not clear.
In the climax its revealed that Naomi is not a part of any rescue team. If she is not sent by Penny, then how does she have the snap of Desmond and Penny. The series did not reveal much of how she had got that photograph. There could be one theory that maybe her group had been sent by Penny's father when they realise that Desmond is alive and Penny who is searching for him, can actually locate him. Maybe this team was sent to find Desmond and execute him before he is found by Penny. Well if thats the case then Naomi had plenty of time on the island to carry out this task before getting back to her boat. This plot could only be revealed in the coming season.
We are not sure if Charlie actually drowns or whether Desmond saves him yet again from the flooded station. And what had transpired between the survivors and Ben, when the Naomi's people come to the island. Is everyone rescued or are some people left behind. From the communication between Jack and Kate, it shows that Jack had done something which he regrets doing. There are several open questions left unanswered. There was no hint about the identity of the dead person in the funeral. Obviously it was someone both Jack and Kate knew and someone whom Kate detested. There are hints that Jack's father is still alive, then how does one explain the coffin he was carrying from Sydney in the pilot episode of the 1st season. On the island, the coffin is shown empty with no justification of the missing body. Kate is supposedly living/involved with someone whom she has to return at the end of the episode. We are not informed his identity either. Obviously the love between Jack and Kate seems to have been missing when they meet at the end of the episode. The details of the rescue would clear all these doubts and for that we need to wait till the next season.
There was an announcement that Lost could run uptill 6 seasons, which means the scriptwriters look in no mood to end the mystery surrounding the island. Lets wait and see till the next season, to find out what happened to the survivors.