Yeah, I hope we fight it or see more. This world of Eos really IS a modern setting based in a classic FF world. Turn back the clock 500 years or more and Black Mages might've been wandering around the lands and such.
I'm also wondering, in the last segment of the Tabata video, we see the four arrive at the outskirts of Insomnia, on a hill, overlooking the capital and it's long bridge. Reminds me of something:
I'd get choked up if a rendition of the Final Fantasy Theme plays at this part of the game. There are only 3 FF games where the Final Fantasy Theme(Prologue to some) plays in the beginning of the game(as opposed to the majority, in which it plays at the end), FFI, FFIII and FFIV. I always though more should do this, as it sets up the adventure pretty nicely, and when it's played again at the end, ties the game up in a nice little bow.