Thanks to the ODI for the summary.
1) Happy Holidays from Darlton
2) They do not confirm either way who all has to go back to the island and say the characters will also question what Ben means?
3) Damon: Saddest moment is Charlie's death.
4) About the Dharma Runway - Damon says it is irrelevant, Carlton says it is a big part of Season 5
5) Smokey was on the island before Dharma arrived
6) The last question was if Jacob is the "heart" of the island and if that is the reason why the island had to move, they kind of joked saying that this is now their plan for the show.