Sword & Shield
1. Add the GTS in the actual games.
2. Increase the roster of the regional PokéDex. I would personally add Venomoth, Donphan, Magnezone, Minior, Lilligant, Gliscor, Purugly, Dragonite, Kingdra, Garchomp, Metagross, and Salamence in the roster.
3. Have Oleana, Bede, and Marnie play much larger roles in the story.
4. Show Leon’s heroism, delve more into his past relationship with Sonia, as well as show Rose’s findings, discovery and use of Eternatus’ Egg onscreen.
5. Have older characters like Lance, Lillie, Iris, Wikstrom, Anabel, and Looker return.
6. Keep Pursuit, Heal Order and Hidden Power as usable moves.
7. Give G-Max forms to Tyranitar, Steelix, Milotic, Frosmoth, Sirfetch’d, Cursola, and Malamar.
8. Have a secret fourth Legendary Pokémon in Galar to find after beating Sordward and Shielbert.
9. Hire more animators and graphics designers to iron out the game’s graphics.
10. Add the option to switch off the Exp. Share.