Pokémon X and Pokémon Y

Indeed, and i'm quite excited about something like that happening. Starting from this generation they can add pokemon after the games release, which would keep the game interesting if new pokemon kept being revealed even after the game is released.

Of course, previous event legendaries were "revealed", but we knew about them anyway.

People are hearing "DLC" and kicking up a shitstorm. but come on, we had DLC already in the form of Wifi events, the tournaments in Black and White 2 and tons of other stuff. The game being on the 3DS just opens up so many possibilities including expansions.

Have new pokemon introduced after the release would be awesome (and now they can patch any glitches too). I remember my friends used an action replay to get jirachi and deoxys before they were announced an released, ruined the surprise. I would be disappointed if you had to pay for them though (or if i missed the event)