Thanks to lyly for spotting this. Taken from the recent BuddyTV Chat with Isabelle from Spoilerfix. I've added to rumours as they make no source available for the spoiler.
Hsolo429 said: Any big Lost news? Is Charlie actually going to die, or will Desmond somehow be able to save him?
LOST: Charlie will eventually die. Will we see it on the series, unknown? There will be developments to this in the coming episodes.
nickersh2o said: Any Kate and Jack love interest in the future?
LOST: Jack + Juliet. Kate and Sawyer will surely have some type of relationship after they slept together. As for Jack+Kate: not in the near future.
Source: BuddyTV