I think that next weeks episode entitled "Namaste", will show Ben Linius on the the island as a young boy and the 815ers will meet him. Maybe the episode ends with Sawyer (or any one of the 815ers) meeting a young Ben Linius after he has arrived on the island.
I am mainly basing this theory on the episode where Ben arrives on the island from season 3. In the that episode, the first thing that Ben sees when he gets off the sub is a big sign that says "Namaste". That may be a clue as to what this episode will include.
As a young boy Ben meets Jack, Kate, Hurley and Sawyer. That is the reason why they were on the list that was given to Michael at the end of Season 2. Also, I think that for some reason he never meets Jin and that explains why he was surprised to hear that Jin was still alive when Locke mentioned him.
What do you guys think?