possible claire spoiler**
i was just reading emilie de ravin’s profile on wikipedia and it said this:
“Ravin was a series regular for the first four seasons, but will not return as a series regular for the fifth season; although she will be on a “holding contract” and will return as a regular in the sixth season.”
what do you guys think? will she be “real claire” or “impostor-claire”?

We never saw claire die, so I am not sure why she would be an imposter.