Well I like worldbuilding so thats no problem for me, anything in particular you want me to help with?
I had an idea that maybe since this regions so owned by corporations, that maybe there are things like poke-vending machines for things sold at pokemarts everywhere or that the pokecenters have a small fee to use them unlike other regions, or maybe even pokevending machines that you can pay to heal your pokemon if the centers are still free as if you went to one.
another possibility is that the Somar pokemon league's pro-trainers who participate in tournaments are becoming incredibly reliant on Pobori performance enhancing drugs to enhance their pokemon instead of the usual vitamins.
things like that that make the seemingly happy prosperous region have a few cracks in it that show that if this keeps going it will slide into something darker under Pobori's control.