I was rewatching "There's No Place Like Home" and noticed this small, seemingly innocuous line:
JACK: That helicopter is our only way off this island.
SAWYER: What's with you and "gettin' off the island"? You're like a damn broken record.
Now, I'd like to think that this was a hint for Season Five, since in the very next episode, we'd be dealing with the very notion of a "broken record"--our castaways shifting through time.
So I wonder if there are any small, seemingly innocuous lines in "The Incident" that might offer clues for what the premiere of S6 will bring. Then again, basically all of "The Incident" was one big set-up for Season Six, so maybe there isn't anything nearly that subtle to be found.