here are a couple of previews i found for new epi to air this wednesday.

this is a good video of kate first season and a good video of jin and sun , willie nelson in the backround.

Episode 3.02: The Glass Ballerina (Sun/Jin-centric)
Airdate: October 11, 2006

• 09/26 - Sayid's plan to locate Jack places Sun and Jin's lives in grave danger. Meanwhile, Kate and Sawyer are forced to work in harsh conditions by their captors, and Henry makes a very tempting offer to Jack that may prove difficult to refuse. Guest starring are M.C. Gainey as Mr. Friendly, Tania Raymonde as Alex, Paula Malcolmson as Colleen, Michael Bowen as Pickett, Byron Chung as Mr. Paik, Tony Lee as Jae Lee, Sophie Kim as young Sun, Joah Buley as Luke, Tomiko Okhee Lee as Mrs. Lee and Teddy Wells as other. Source: ABC
• 08/30 - Colleen is set to have been a security officer when she was off the island. Source: SpoilerFix.com
• 08/29 - New character introduced in #303. Will recur. 'Colleen', late 30's, tough, obvious military training. Doesn't flinch when a gun is shoved in her face. Trusts few people on the island and only allows herself to be emotionally vulnerable in front of her significant other. Source: secretagentman @ TWOP
• 08/18 - Sun has a dream of her future, featuring her 9-year-old daughter. Source: secretagentman @ TWOP

Lost season 3 promo