This is a great way of thinking about what’s happening on the show, I wish I had though of it. By treating the island as a character you can imagine that it needs it’s Constant to come so that it can stop jumping around in time. The writer, Tapdawg from DocArzt, tries to guesss who the Constant is, I don’t think I’d take the comparison that far. If there is an actual Constant for the island then I’d have to agree with Ben, it’s likely all the surviving Oceanic Survivors. We’ll See.