After translating the Temple hieroglyphs, it has occurred to me that there is one more major turn to play out in the show. I thought at the end of Season 5, there was one last big location we had not seen yet: the Temple. Well, we have an insider's tour of the Temple right off the bat.
I am now very confident that my theory that the show's big premise is about the afterlife and its struggles between supernatural beings, composed of variations and shades of many cultures based upon the myths of ancient Egypt. It may have been the hidden-in-plain sight show-within-a-show Easter egg hunt from the very early stages of the series; we have known of Smokey (MIB) and Jacob but never saw them until the end of S5. There is still some debate on whether one is good, one is evil, one is life, one is death. In the end, it may not matter. Because both Jacob and MIB answer to one higher being, who I will call "The Father" for no other reason than the temple pillar translations.
It would make sense that Jacob and MIB are kin, like brothers. In the cosmic hierarchy, these two rivals were placed in a "time out" to resolve their differences. A time out which lasts thousands of years in human time. Instead of resolving their differences, the two merely begin to play with any toys (lesser beings, like humans) that they could find in order to pass the time until "they can go home" (to Olympus, heaven, etc.). Looking down from their island corner, they found the most advanced people on Earth, the ancient Egyptians. They found their culture interesting, so they created a method (a gate) to bring them to their dimension. The ancient Egyptians thought they had found the real path to the underworld gods, and began to divinely worship them. Which was great, until the humans began dying off because they could not re-produce outside the realm of the Earth's existence. No matter, there were always more humans on Earth. So, over time, the brothers brought more civilized humans to the Island. But the newer arrivals were less into worshipping the brothers than fighting among themselves. This led to the brothers to renew their own personal disputes and rivalry on what to do next: stay, and resolve their differences so they could go home, or as MIB devised, a method of resolving their disputes once and for all, by killing Jacob so he could go home. The latter's logic may be quite twisted, but it appears that at least Jacob adopted many of the mythologies and socially significant pieces of human history in order to protect himself against MIB's plot. Likewise, MIB could have adopted many of humankind's primal fears, monsters and nightmares to cull loyalists in his plan to kill Jacob. And this gamemanship has led many viewers to believe the two are playing a game of chess or backgammon, with the characters as pawns or pieces.
And yes, it is quite possible that some one will get hurt in the end. Many human lives were lost because of the rivals bitter feud. They used human souls like humans abuse lower life forms; like little children squashing bugs on the sidewalk. But the final question is Who put these two into their "room" for the original time-out? The Father. A superior being that has dominion and control over both Jacob and MIB. It would make perfect sense that a Father figure would conclude this story. We have been previewed with all sorts of "Daddy issues" from the very beginning of saga. In fact, most of the main characters had serious parental issues, most of them left unresolved or ending badly. The Father could tie all these torn personal tapestries back together again. He could provide a final moral insight to the feuding brothers: a final test whether they learned anything, especially from the lesser human beings who could have taught them great insight if they had only stopped to listen and observe.