I'm just implying that they could have created these types with nothing similiar looking. For instance the oncoming scorpion pokémon. It's new, original and has a new type combination. Why wasn't he released in RS and is he just thought about in diamond and pearl?
Also a reason that I might not be into the RS pokémon will probably be because I never saw the episodes of that time. We always had reruns while other countries were in the new seasons. They are running some of these episodes now as I caught a glimps of the episode where Ash catches Treecko. But, I'm kind off grew out of the anime. If they recreated it a bit (with perhaps a new main character) for it to be a little more focused on teenagers...