With all of the changes the devs have made to the game to feel more lively ( seasons, night and day differences, etc ) what about populating the world with sprites of pokemon? Places lacking trainers look dead and not lively. Can have Diglett/Dugtrio pop out of the ground momentarily in caves, Zubats and Pidgeys flying over the screen up high in their respective biomes, Gyrados and seakings jumping out of the water. Just some little spurts of life occasionally here and there to make the regions feel inhabited.