Sorry for not responding so quick, they have new rules and I needed to fix my sig!!
Yes, it's usually after a game comes out or before a movie, it always follows or right before something related to some thing other than the actual pokemon, you know like the mew came out right after the release of hg/ss in japan, you didn't need that poke for any event in those games, you needed a celebi, arceus and pichu!! It's all weird really!!