Wait. When was there news about Pokemon saying that they're finished with making new generations? It's such a lucrative franchise, why would they ever stop? I can foresee Generation 30 when I'm sitting in a rocking chair.
Also, do you know how much information is squeezed onto that tiny DS catridge? The graphics, the programming, the interactions, the animations of every single Pokemon, every single move... they increase with each generation as people transfer their Pokemon from previous games.