>>15785095No, most of the pokemon were designed around the same time as what you now know as gen 5 pokemon. They were developing XY ever since HGSS, but there were so many new pokes they decided to have a gen in between. That's why gen 5 has so few advancements over 4, and so many new pokemon to make up for the lack of new features. The rest were added in gen 6.
