the LOST coffin

Many of you know Amy and I follow LOST avidly. So, this is for you all LOST on the island, per se, with us. Who is in that coffin? I'm intrigued by the theory that it was a youth or child, but it seems like a lot of speculation. And it not being friend or family... what's that about? Definitely not Ben. That would be too... too much. Anyway, maybe we'll learn more tonight.
Is it Claire's baby? It is the future.