Virginia,
"Anti-K, can you imagine a 'Flash Forward' LnC crossover fic, in which the characters from LnC S1 flash forward to S3 or S4. Okay... I'm moving that thought to the challenge boards! If I wasn't neck deep in my current epic, I'd probably give it a shot."
It's not precisely your premise, but if you're intrigued by that idea, you'd probably enjoy
Foreshadowing .
Happy