Valenzetti's Return?

Eloise Hawking kept referring to a 'clever fellow' who discovered the location of the island. Well, one could theorize a hundred names, chief among them Daniel Faraday and the Hansos, who could've done it. However, I'm wondering about Enzo Valenzetti, the non-canon figure from the Lost Experience alternate-reality game. Valenzetti created an equation that would predict the end of mankind, and the coefficients are (you guessed it): 4, 8, 15, 16, 23, 42. What the variables represent are unclear. In Valenzetti's info, it says he died in a plane crash. Well, what if Valenzetti simply found a plane that would fly through one of the "windows" Eloise Hawking was talking about? What if he didn't die at all, but was simply brought to the island? Could he be on the island now? Part of the dharma initiative? An Other? We'll see.