The Search For Eli Vance
Given that this is, for the most part, a prequel, we get to see genius scientist Eli Vance, alive and relatively well. Those of you who finished Half-Life 2: Episode Two will recognize what he says at the end of the trailer: “Close your eyes, honey.” It’s ominous for the quote to be used, but what this implies for Half-Life: Alyx remains to be seen.
If anything, simply being a callback (or call-forward depending on how you look at it), emphasizes that the story revolves around the fate of Eli Vance and his work to combat the Combine. You also hear a Vortigaunt say, “Alyx Vance alone cannot prevent his fate,” leading us to some more wild theories.