i think the sixth is Aaron.
just imagine if something like this happened in reality, and just 5 from the flight survive + one baby born during the disappearance time, what are the media going to call them? the Oceanic 5+1/2?
it would be the Oceanic Six for the public, and it's irrelevant that Aaron wasn't technically on the flight manifesto. he still is a survivor of the ordeal.
as far as Jin, i think it's left purposedly muddy if he is dead or alive.
I'm inclined to think he died, but even if he was alive, (but still on the island, with his fate unknown to her) Jun would go there anyway, because that is what she has and of course she would 'miss him so much'.
Also, she would probably be a very public figure at this point, just like hugo, and so in a way they would have to 'go to him' just to maintain the cover.
Another aspect to consider is Jun's father.
He is very powerful and rich. unless he is directly involved with the island business, wouldn't she get him he use his power/resources to get jin back, if he remained behind?
finally, i digged the double flash forward/back trick. it was clever and well done.
to me the giveaway was the "year of the dragon" comment, because i knew it was 2000, and the old cell phone sort of confirmed it (and also the "old jin" i will kill you comment).
I think early speculation was either Ben or Locke, since we know Ben was alive in Sayid's flash forward I'm thinking it would be Locke... but who knows, it could still be Ben or somebody else.
