Quoted By:
The only reason to design new Pokemon at all is for use in marketing purposes. Kids won't buy the new games if they don't see the cool new Pokemon that are in it. It's the same Japanese mentality that makes them spoil everything in the next episode's preview in every kids' anime.
If you don't want to be spoiled don't spoil yourself. These reveals are aimed at kids who otherwise might not be sold on the game yet, not you.
