here little summary of what to expect for those different couples on lost (i say i guess we could have some surprise with darlton on the finale so we'll see) but for now it's what it will happen ! (thanks demy for the gif)
* Juliet & Sawyer: Going strong. Season five is Lost's bizarroverse season, and Lost will devote a lot of screen time to the left-field pairing of Suliet through the end of the year.
* Juliet & Jack: Sorry, Jacketeers, but at least in season five, these two are going nowhere fast.
* Sawyer & Kate: Over the next batch of eps, Sawyer and Kate get under each other's skin but probably don't actually get into each other's pants. (That's OK, Skaters—there's always fanfic.)
* Jack & Kate: The series' original couple always has each other's backs. But do they make the beast with two backs again this season? Doubtful.
* Jin & Sun: Jun don't reunite until closer to the finale, but that wedding we told you about? Word on the street is that it's a flashback to the Kwon nuptials. Yay!
source : kristin eonline