For it to exist
.
Allow the post office to actually act as a post office and send messages to other towns online. Having to go to someone's town to send a message is super silly.
Oh, wait, skin color options. Absolutely zero excuse not to have them at this point. I think HHD let you choose so that's a good sign.
New residents should only be able to move into lots determined by the player. It frustrates me to no end to have some asshole build their shit right on my path or flower bed.
More interactivity with some indoor items.
More complex interaction between villagers to meddle in.
More customization options and ore types
Online functionality that works well and is quick
All of these, and also:
Remove the alternate running animation from wearing skirts and dresses.
Let me put PWPs wherever I want, without the empty space requirements.
Make it a little easier to unlock new PWPs. I'm 700+ hours in and still can't build a bunch of the things I want to build.
Same with art for the museum. I only need a few more pieces, but I only get to shop for them once a week and there are so many repeats.
In fact, maybe rework the art thing altogether. It's weirdly real-world and human-centric and doesn't really fit in.
Remove overlap between kinds of animals that can be people, and that can be caught (frog, octopus) or kept as items (doghouse, birdcage, etc).
Stop letting sea-floor creatures swim outside the ocean boundaries.
Allow MANY more gyroids to play at the same time in your house. 4 is not nearly enough. GC version didn't have this limit, and I don't know why it was introduced.
Allow items to be placed on wall shelves (ideally including gyroids).
No more amiibo-exclusive items.
Let spruce trees grow everywhere in town, not just the north half. The place is like 1 square mile.
A larger allowance of custom designs.
Higher rate of conversations between animal neighbors. I love them all, but I so rarely catch any of them.
Add bells directly into the wallet instead of the pocket when picking them up by hand.
More neighbor personality types. In my dream version, they'd each have unique lines, but I know that's not feasible.
And I'd like a Red wood furniture set, to go along with the Green and Blue sets.
I think that's it.