Re: Will X & Y feature all new pokemon or feature new evolutions?
Every Even Generation they seem to release a mass number of previous evolutions. (On odds they are brand new with the exception of the Hoenn but, it was just 2 pre-evolutions.) Pariculary there might be 2 new Eeveelutions, a Dunsparce, Farfetch'd, Chimecho, Chatot, Delibird, or a Stinfisk evolution. To answer the question, yes X and Y will feature evolutions of previous Pokemon. (Or so I hope.)