A dragon type is the only logical eeveelution to come out next since after gen 1 the eeveelutions have come in pairs--Dark and Psychic, Grass and Ice, and now Fairy. And the counter-part for fairies are dragons. But will it ever be revealed? Idk. I've searched throughout for the official pokedex of X and Y and I am not impressed at all. If there are to be no more pokemons to be revealed, (and I sincerely hope this isn't the case) then Gen 6 is the shortest generation of Pokemon with only about 69 new Pokemons excluding the Megas since megas aren't really new pokemons, just new forms.