Anyone who has not seen last night's (Apr. 1st's) episode, "Whatever Happened, Happened", there are spoilers for that episode below.

Aright, so I was off a little bit, but I was right about Ben living and but it looks like I am wrong about Ben remembering everything. And I was way off about Jack helping him though.

If he remembered everything, then his obsession with Juliet (who is the one who wouldn't give up and let him die), and his harshness in using Sayid as his hitman. But from what Richard said, he will not remember any of the events surrounding his injury (cop out way of avoiding the issue). Kind of funny that it turns out Sayid's shooting Ben is what turns him into the monster he becomes.

A lot like that episode of The Outer Limits, where the girl goes back in time and kills Hitler as a baby, only for the woman in charge of taking care of baby Hitler to go buy a gypsy woman's baby from her in order to keep Hitler's parents from discovering that their son was kidnapped and murdered, which ultimately results in the historical Hitler we know.