Easy thread: something that could be a fun/great addition or returning and updated features. Some examples could be:
>Exp. Share and SUPER Exp. Share
The first Exp. Share gives half the experience gained to the last Pokemon on your party. After the main quest/later in the game, it gets updated and you can send experience to all the party.
>GB Player Plus
Instead of just remixing themes, you can buy songs from Pokemarts so you can have battle themes from other regions for the Battle Tower and Online battles.
>Difficulty
Giving the option to skip tutorials and making the AI more or less challenging as in BW2 while also adding small changes like the money or experience you get after a battle, the costs of items and a record of how many times you have lost a battle or gone to the Pokemon Center. After the main quest, everything could get to the "default settings" to avoid easy experience or money grinding.
>NO MORE EXCLUSIVE CLOTHES