Below are the known spoilers for the upcoming episodes plus general spoilers for the new season 2. If you know of any others please let me know.
General Season 2 Spoilers
Spoiler 1: The "Orientation" film's jarring jump cuts are actually what Lindelof calls "missing pieces" that resulted when former hatch hermit Desmond spliced the broken movie back together after watching it too many times. Those missing pieces will become "very important plot points down the road."
Spoiler 2: Lindelof confirms that Walt said, "Push the button. Don't push the button. Bad."
Spoiler 3: Cuse admitted that Shannon's jungle encounter with Walt was a dream.
Spoiler 4: Says Lindelot: "I think the audience is very compelled to figure out exactly where Desmond was running to and, once he gets there, what is he going to do. We told you that he was in a [ship] wreck, but I think there are a lot of questions about how exactly he came to be here. That's certainly a story on the horizon."
Spoiler 5: "It's important to note," Lindelof says, "that we've never said when the plane crashed. I think the assumption is that it happened in 2004 when the show premiered, but we've never said that."
Spoiler 7:"The Helen we meet in flashbacks is not the same Helen that Locke was speaking to on the phone," Lindelof clarifies, sort of.
Spoiler 8: Lindelof says, "What happened to the 'tailies' that so drastically whittled their numbers is a very compelling mystery that drives us through the first third of the season."
Spoiler 9: A major FEMALE character dies in Episode 6.
Spoiler 10: Expect a reunion between Rose and husband Bernard.
Spoiler 11: Marvin Candle only has 1 hand.
Spoiler 12: It's not Claire who bites the dust next.
Spolier 13: We will be seeing less of Walt.
Spoiler 15: The link with Shannon's dad will be explained in November
Spoiler 16: Kirstin says. "I just found out HOW the female on Lost dies and.I want to cry. I'm not kidding. It's so shocking. So good. And so unbelievable. The doomed female dies NOT at the hands of the monster. But it is at the hands of someone we know who .... well, given this twist, just might BE a monster.
Spoiler 17: Desmond will be back.
Spoiler 18:The person that is killed is intentionally killed, although the reason will not be known to us immediately. This is not a LOST murder mystery though, it's more of a why'd they do it. The person who dies is a crash survivor. The person who kills them will not be revealed until the November sweeps week episode (of course). The network will dangle this information for a while to build anticipation. (Another "who shot JR" moment.) The full time-line is: Death in Episode 6. Rerun the following week. Then episode 7 which is mostly told in flashback from the tail-section point of view, but ends with a teaser of who killed ________. Then Episode 8 which reveals who the killer is. Look for this person to deceive everybody except for a select few.
Spoiler 19: Name of Ana-Lucia friend is Mr. Ecko
http://www.thetailsection.com/images/ecko_grin.jpg
Spoiler 20: Jack is NOT the killer
Spoiler 21: Rose is NOT the one who is killed
Spoiler 22: The airport encounter between Jack and Ana-Lucia was not accidental.
"...and Found" : Episode 2:5 : Episode Centric = Jin & Sun
Michael sets off into the jungle by himself determined to find Walt, but discovers that he is not alone. Meanwhile, Sawyer and Jin are ordered by their captors to take them to their camp, and Sun frantically searches for her missing wedding ring. The name of Adewale Akinnuoye-Agbaje's character is revealed. He and Cynthia Watros' Libby are two of the lucky "tailies" still alive and kickin'
In this episode we also find the identity of the bearded man on the boat that took Walt. The bearded man is Kelvin, the person who Desmond claimed was in the bunker before he arrived. You can see this from the actor's IMDB page under notable appearances.
http://www.imdb.com/name/nm0301370/#guest-appearances
Judging from the promos, there appears to be some flirtatious Ana/Sawyer interaction as they make their way across the island.
Guest starring: Sam Anderson as Bernard, Kimberley Joseph as Cindy, Robert Dahey as poor man, June Kyoko Lu as Mrs. Paik, Tony Lee as Jae Lee, Rain Chung as Mr. Kim, Kim Kim as Mrs. Shin, Josiah D. Lee as Tai Soo and Tomiko Okhee Lee as Mrs. Lee. Written by Damon Lindelof and Carlton Cuse. Directed by Stephen Williams.
Video Preview 1:http://www.sparklies.org/~lisa/lost/video/eppromos/ep2x05promo-sm.zip (4Mb)
Video Preview 2:http://www.sparklies.org/~lisa/lost/video/eppromos/ep2x05promo-lg.zip (11Mb)
Video Preview 3:http://www.sparklies.org/~lisa/lost/video/eppromos/ep2x05promo-cdn.zip
Video Preview 4:http://www.sparklies.org/~lisa/lost/video/eppromos/lost2x05promo2.zip
Photo Preview 1:http://lost-media.com/modules.php?name=coppermine&file=thumbnails&album=745
Photo Preview 2:http://www.lost-media.com/modules.php?name=coppermine&file=thumbnails&album=757
"Abandoned" : Episode 2:6 : Episode Centric = Shannon
Sawyer's wound becomes life-threatening as he, Michael and Jin make their way through the interior of the island with the tail section survivors. Meanwhile, Shannon is once again haunted by visions of Walt, and Charlie becomes jealous of Locke's interest in Claire, on "Lost,"
A major female character dies in this episode. We know for sure it's not Claire, leaving Kate, Shannon, or Sun as the possibilities.
Guest starring are Malcolm David Kelley as Walt, David Ely as intern, L. Scott Caldwell as Rose, Sam Anderson as Bernard, Kimberley Joseph as Cindy, Ian Somerhalder as Boone, Lindsay Frost as Sabrina, Francois Guetary as Philippe, Ashleigh Ann Wood as Nora, Maree Miller as Sophie, Patti Hastie as nurse, Michael Cowell as doctor and Sandra Le Bat as Dominique.
Photo Preview:http://lost-media.com/modules.php?name=coppermine&file=thumbnails&album=755
"The Other 48 Days" : Episode 2:7 : Episode Centric = ANA-LUCIA
The entire seventh episode is devoted to the other survivors backstory, meaning we find out precisely what happened to them for the past month and a half they've been on the island. And I hear (don't read if you don't want to know!) their group has been tortured by the others. Some have been kidnapped and many killed.
This is going to be the "concept episode" the producer spoke of where we find out what happened to Ana Lucia from the moment she gets on the plane until the current time period....chronicaling her time on the island and what she has gone through the past 48 days along with the other tail-end survivors.
This episode will also feature her flashbacks to her life before the plane crash.
Episode 2.08: Old Habits : Episode Centric - CHARLIE
We find out in this episode who killed the main female character back in episode 6 and why. It is someone we know and love.
Episode 2.09: The Real Mr. Sawyer : Episode Centric - Sawyer
No Synopsis available.
Episode 2.10: Merged : Episode Centric - UNKNOWN
No Synopsis available.
Episode 2.11: Early Bird : UNKNOWN
No Synopsis available.
Episode 2.12: Vindication : Episode Centric - UNKNOWN
No Synopsis available.