Scary as it is to think about, most people who discovered Pokemon back on the Nintendo Game Boy are now in their late 20s to 30s.
So, it is about time that someone create a more adult themed Pokemon concept. Ray Bruwelheide has done just that in his awesome Pokemon Noir webcomic. I actually really hope that Nintendo picks up on this and creates an adult oriented game for Pokemon players. It might always be a franchise for kids, but they could capitalize on the aging demographic of loyal fans.
Here is an excerpt for your enjoyment.