LA: Jack suddenly has a kid named David, who is a gifted pianist. Who is the mother? Dogen is in LA too, has a musical boy as well.
Jack has this scar from the appendix operation he had to get done in season 1, but his mum said it happened as a kid, which he does not really remember.
Christian's testament mentions Claire, surprised faces all around.

On the island: Jacob keeps appearing to Hugo (who still has the best lines in the show "I lied to a samurai". Apparently someone is coming to the island and needs help finding it. Of course self-righteous Jack trashes the lighthouse, because his childhood house was reflected in its mirrors.
Claire is the new Rousseau and not exactly easy on the Others. I wondered if Jin knew that Kate took the baby off the island, and then he said so. Why in God's name would he take it back and tell Claire Aaron's at the temple?
Claire was not alone the three years, she had a friend: UnLocke. Or whatever form he was at that time.
Together they will go to the temple and kick ass. Which Jacob already sees coming.

Also Matthew Fox is one of the best actors on a show full of great acting.

Awesome! Bring next Tuesday!