Adding a furniture shop inside of the realtor place would be nice.. especially furniture that correlates with the themes of the house templates sold there. I feel like they haven't updated that place in forever.
-Window panes(I don't think any of the current single player houses have those).
-Mirrors that actually shows your own reflection like the one at TaylorRichaards.
-More outdoor lighting effects/styles(like those heart/lightning/smoke orbs).
-Activated lights/lamps/posts.
-Picture frames that allows you to upload your own images(like guild pictures).
-Ability to change/paint the colors of your own house walls to any hex color or any sold colors at the furniture shops.. same with flooring patterns.
-A house elevator that allows you to transport/warp from one area to the next(for interior rooms).
-Ability to have preset messages that pops up(not the usual yellow furniture note) but just any kind of colored text etc that lets you welcome/leave a message for all of the guests that have entered your crib.
-Ability to remove the fading effect when entering houses.