ferretbacon
Obsessor
this first reveal is definitely going to be a couple big names, they need faces to sell the expansion. Think about the first people we saw for vanilla, USA leader was first, and a week later was Cleopatra, then Victoria, then Tokimune, Qin. They went with the big guns in terms of marketability, name recognition, etc. first. France was next but that was Catherine which was sorta the first "oh?" pick. Brazil was next which i think was also a surprise for folks that Brazil would be in vanilla at the time. They had Teddy and Cleopatra all over their advertising for the remainder of pre-release, so anticipate one or two big recognizable people to be first. Genghis Khan definitely fits the mold. Getting a Korean leader out early also fits the mold. They are heavily referenced in the trailer. I can't see how one of these two, if not both, come this week. A western civ COULD sneak in to 2nd reveal, but I'm not sure which one they could pick that would be so recognizable as to go above a korean leader.
Interesting way to look at it. To lend more credence to this, I recall that Boudica and Attila were the poster children of the Gods and Kings expansion.