Wallace's Ithaca by M&M

Disclaimer: the way i see it, at this point theories are supposed to be out there and just fun, simply because the answers to mysteries are hitting us hard and leaving us numb.

We have already seen ,both in the cave where Flocke guided Sawyer and in the Lighthouse, names of candidates who will potentially take Jacob's place in making sure that Smokie is not unleashed into the world. One of these names is "Wallace". My theory is that this name refers to Walt.

The writers of Lost have already informed us that season 6 is parallel to season 1, thus completing the circle/loop. On top of that, the very first episode of Lost is being aired one day before the final one.
Let's now think back on season one and the prophetic scene during which John Locke talks with Walt about backgammon.
LOCKE: Two players. Two sides. One is light … one is dark. Walt, do you want to know a secret?
I think that this scene is a prelude to Walt vs Flocke further on.

Let's also not forget that Walt is portrayed to be a child of special powers who can pretty much think of something and then see it before his very eyes(bird, polar bear). That's why the Others brought him to their camp and tested him, a process that young John Locke himself had gone through when Richard had visited him. Actually, Walt's powers remind me of another line in Lost:
BEN: Picture a box. You know something about boxes, don't you John? What if I told you that somewhere on this island there's a very large box...and whatever you imagined...whatever you wanted to be in it...when you opened that box, there it would be. What would you say about that, John?

Lastly, i'd like to take it very far and comment on one of my very favorite scenes in Lost which is none other than the first scene of "The Incident". We see Jacob creating the tapestry that reads a line on it taken from Homer's Odyssea in ancient Greek. Odyssea is a story about a man who left his wife Penelope to go to war and took a long time coming back. During that time, Penelope made tapestries and tries to fight off suitors who wanted to take her husband's place. When Odysseus(Ulysses) did make it back, he was way older and tried to hide his identity so that he could have a clear view of what had been going on. Only his loyal dog realised it was him. The story ends with Odysseus beating all the suitors to get back with his wife.
The parallels to Lost are many. Jacob is like trusted Penelope who is seeing one bad suitor after another, making tapestries and waiting for the right one. Even the dog can easily be Vincent, Walt's dog.

Just think about it, Lost writers have never made it easy for us... Sure, everyone is thinking that the one that will take Jacob's place is Jack but perhaps Jack is there to help and protect Walt, the final candidate as he faces the one that has taken the form of his mentor ,John Locke. Just like Luke from "Star Wars", he has to come to terms with the fact that someone very dear to him is now the face of the Dark Side and must be stopped.