I currently have two suggestions (more to be added in any edits).
First Suggestion is this. theres a small chance in almost any pokemon game, for a pokemon to get Pokerus. I'd love to see Pokerus in PFF. Pokerus, while training with pokerus, Total exp needed multiplied by 1.2 and stat gain multiplied by 1.5. I feel like that would be good, little extra training for a little extra points ehh? ~\^~^/~
Second Suggestion <3. My second suggestion is basically this. Why not add in an everstone to keep pokemon from evolving? using an everstone could give a pokemon a Forever Young status and keep the pokemon from evolving due to the status. I'd also love to see this because i have multiple pokemon that i'd love to keep in stage 1 and the evolution pop up gets annoying.
P.S. I love you NeeNee (Oca) :3
-Forever Mine <3<3<3
Rosaly (pronounced Rosa Lie)