In the past few days, 2K Games has kept adding more and more hacking elements to its "Advent" teaser site, but the enigma has already been cracked by eagle eyed Reddit users. As some already guessed, it's indeed a new XCOM game.

Hidden within the site, there is this link, that hides (not very well) the letters "GFIILOD" in black, and links to the pamphlet.

Advent

In the pamphlet, there's a picture with what seems to be a cellular structure, but it's simply a way to hide the letters "NCOVO" in red.

Advent

Now we can put the letters together, and we get "GFIILOD NCOVO." Meaningless? Not at all. It's just the anagram of "Vigilo Confido," the motto that appears on the emblem of the XCOM in that masterpiece that was XCOM: Enemy Unknown.

XCOM-EU_Emblem

The official announcement should be coming soon, but in the meanwhile, we can be definitely confident (yes, I made a pun), that a new XCOM game is coming. interesting, what has been shown so far really reminds me of XCOM: Apocalypse from 1997.

You can get into the mood by listening to this threatening audio file, that has recently been added to the teaser site.