I would like to suggest having a weather stuff here and Pokemon most likely appear when such:
Sunny, fire and ground type.
Cold, ice and ghost type.
Cloudy, flying type.
Rainy, water and psychic type.
Stormy, electric type, ghost type and psychic.
And also Pokemon swerm like:
Swarm of Phanpies on Route 005
Oh and random news that you can think of for just humor like a guy is stopped wearing swimming trunks while jogging around Safari Forest. Random news for humor only.
I think it will be good to have such. What do you think?