Not a fan of Lovecraftian horror or vampires, and that sort of thing has no place in a Civilization game anyway, being that it is supposed to be based on real history. I'm really hoping that these vampires are separate DLC that I wouldn't have to buy to get other content that I'd like ~ would be very annoyed if they are attached to the Ethiopia DLC, for instance (Ethiopia looks so good, and I've been wanting Ethiopia from the start, but this would ruin it for me). I've already made up my mind not to buy the Secret Societies DLC when it comes out. If the Devs want to make fantasy/occult elements for the game, my request is to keep them as separate and entirely optional DLC that never is attached to the core game (On that note, I don't like it how the Apostles call lightning from the sky...there, I said it).
I can appreciate a little Sci-Fi though in this context, such as when your civilization has reached future techs. I think a measure of poetic licence in building on future possibilities should be welcome, though within reason; I wouldn't be supportive of adding alien civilizations to the game, but I would be in favor of colonizing Luna and Mars.
It's very disappointing that after finding out that they are adding a bunch of new content to the game, they chose this path to go down rather than important areas that they desperately need to go down, as has been the request of the fans for literally years now: i.e. to improve upon the AI and diplomacy...Barbarians are an ideal candidate for this, with so much untapped potential, it's amazing to me that they are leaving them as mindless attack bots! Now that is disappointing, and a let down to the true fans on this game series. This game is already fantastically complex in the other areas, but still sits wanting in such obvious and essential areas.