>>36512383Postgame has Stadium-style cups that are level balanced just like old Stadium. Aesthetics, crowd cheering, and all. Bonus: Bring back Ted Lewis as an announcer.
Stadium Minigames in the Game Corner.
"Hard" Mode that isn't even actually hard mode but simply makes it so it doesn't hold your hand at every turn.
Literally that's all it would take, but if I were to ask for one other thing...
The Pokemon League plays out like the anime before you fight the Elite Four.