Rather obvious topic theme here. My guesses are that Yvetal is going to be Flying/Fairy if Fairy ends up existing, and Flying/Dark if there isn't a new type. Xerneas will be Grass/Fairy is fairy is real and Grass/Psychic if it isn't real.
Official Piplup of the Pokemon X board. Current Location: In your nightmares with a knife and a gun and a chilling wail