Pokémon X and Pokémon Y

Good news everyone, Nintendo has confirmed that Chespin is a grass type, Fennekin is a fire type and Froakie is a water type. Damn, my predictions were all wrong, I thought Fennekin was the water type.

I'm being sarcastic, basically they have confirmed they are pure grass/fire/water types... at least in the beginning, they say nothing about their evolved forms, which is the information we actually wanted to know.

I'm pretty sure that's always how it is ever since they added subtypes. They start pure and then branch off with a subtype.

Looking it up just now, the only Pokemon that doesn't apply to this rule when they get a subtype is Bulbasaur, but I'm not really sure he counts considering there were no subtypes in his original game.