Jack – “The Island isn’t done with us yet.”
This quote was first associated with John Locke. However when Jack says this to Sawyer on the boat, I think Jack is acting out exactly as Jacob planned him to.
The reason why I say this is due to the quote above. MIB seems desperate to get off the island and wants all the candidates to go with him. However I think Jack is realising that MIB is full of empty promises and is only interested in seeking his own agenda.
MIB insisted on telling Jack that John Locke was a sucker for thinking the island was special, yet recently Jack’s attitude towards the island is very similiar to Locke’s attitude when they first arrived to the island. Jack is realising that MIB is trying to persuade Jack that the island is nothing and leaving would let Jack return to his normal life.
On the other hand Jack has already left the island and his normal life never resumed he was given constant reminders of the island which led to alcohol abuse and eventually returning to the island to fulfill his destiny.
So basically the bad news for MIB is Jack aint leaving the island until he believes he has done what the island requires him to do. What that requirement is remains to be seen.
If Jack doesnt leave then MIB cant leave because he needs all candidates with him in order to leave. Although Jack is with MIB, Jack does not trust him. I believe strongly that Jack will not leave the island unless his purpose has been fulfilled so all of MIB’s sweet talk will not work.
In addition if MIB cant leave Jacob has his wish. So in my opinion I believe Jack is paramount to Jacob’s plans to keep MIB on the island. Jacob decided to guide Hurley and Jack to the lighthouse.
Hurley was their as the translator for Jacob. Jacob even commented that Hurley and Jack had to be as far away from the temple as posiible due to their importance.
Jack won’t leave + MIB can’t leave = Jacob’s Wish.
Any comments are more than welcome.