- A new dungeon with at least one new enemy as challenging as the Lynel.
- A "pet dog" button.
One of my few complaints with BotW is the low enemy variety. You encounter almost every single enemy after one or two Sacred Beasts, and the rest are just variations of the same enemies. That's why I'd like to see at least a new species with an interesting fighting style (Darknuts, Poes or ReDeads would be awesome).
Actually, please make Breath of the Wild 2 with a big graveyard area, a big underwater area, and all of the classic locations and enemy types that aren't present in the original game (plus new ones of course).