Quoted By:
>Poke MP3. You can buy battle themes from other regions and play them in battle facilities and multiplayer battles
>Limited "virgin" TMs which you can store any move you like, obviously you can only write on them and no "rewrite" so you still have to breed for certain moves
>Hidden Ability Capsules which work like Bottle Caps: you can't breed them, and they can only be used on level 100 Pokemon, being also extremely rare
>Improved bag with returning Pokeball slot as well as "Plate", "Disk" and "Mega Stones" pockets or key items just to have easier access and better organization
>Being able to craft / purchrase Johto Pokeballs
>Adding a "Quick Battle" option in the main menu like in Pokemon Colosseum and XD with Single, Double, Triple, Rotation and Battle Royale modes
>More regional variants
>Either removing Mega Evolution completely or giving us a lot of more megas
>More moves like Psyshock (attacks on the opposite defense) and Frost Breath (super effective against an usually non-very effective type) as well as more terrains, weathers or room moves
>Mythical Pokemon locations or battles being aviable via QR codes or as Pokedex rewards
>Version exclusives limit to Pokemon only (meaning no Festival Plaza or clothing exclusives bullshit). Extra points if region legendaries aren't exlcusive as in GSC, Emerald and Platinum
>Return of Contests, Secret Bases, Pokeathlon, Pokestar, and minigames
>Battle Pyramid, PWT and Factory clones returning (not with the Battle Agency stupid level ups)
>Ability and stats redistribution for underused Pokemon, at least giving them nice stats and movesets for Contests or Pokeathlon
>GTS fix to avoid impossible Pokemon to be wanted
>Way more customization options