Yunjin Kim and Daniel Dae Kim Yunjin Kim and Daniel Dae Kim

Lost fans have looked forward to the reunion of Sun and Jin since the show's Season 4 finale, and in last week's episode they finally saw Jin reunited with... Claire?

Daniel Dae Kim, who plays Jin, and Yunjin Kim, who plays Sun, say fans may have to wait longer than they might expect for a reunion. Or wait forever. Both actors tell that with five episodes left to shoot, they still haven't had a reunion scene.

Is it possible they never will?

"It's very possible," Dae Kim said. "It's not a given that we're reuniting at all. There's no guarantee for a happy ending on the show."

"It hasn't happened yet," added Kim. "So I'm thinking it will never happen and it'll be really sad."

Catch up on Lost by reading our recaps

In the Season 4 finale, Jin missed getting on the helicopter that carried Sun and the other members of the Oceanic Six, leading Sun to believe he perished in an exploding freighter. Jin survived the explosion to join several Losties on their time-travel adventure to the 1970s. Sun returned to the island with other members of the Oceanic Six on Ajira Flight 316, but she didn't travel back to the '70s with the rest of them.

"I wonder whether this is a Romeo and Juliet story and it's meant to end in a tragedy. We might reunite and then something terrible will happen," said Dae Kim, who described Jin and Sun as the heart in the body of Lost.

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One place where Jin and Sun are together is the alternative timeline introduced in the Season 6 premiere. "We're all different," said Kim. "We have different jobs, we lead a whole completely different life. They have a very different type of relationship. It's also different from the flashbacks."

In case you didn't notice in the premiere, Sun wasn't wearing a wedding ring and the airport worker called her by her maiden name. What does it all mean?

"You're going to start to revisit some of the characters in a way that you've seen them before," Dae Kim said. "But not everything will be as it seems, like so much on this show."

For now we'll just have to settle for the Jin-Claire reunion, which raises as many questions as it answers. A gun-totin' Claire (Emilie de Ravin) ran into Jin in the middle of the jungle, but it's unclear whether she'll get him back to his wife.

Do you want to see Sun and Jin reunite?