The article talked about the Pokemon Diancie, Hoopa and Volcanion. Yup, according to this site they're legit. They're pretty much the Meloetta, Keldeo and Genesect of this game, in comparison because the first trio do look like legendaries, and are quite late in the Pokedex, a space usually reserved for psuedo-legendaries and legendaries.
Hope I helped!
