I've been playing for a while, and ideas always pop into my head but I never post them in here. So I'm sure some of these have been said, or are already planned for future updates, or are totally unrealistic, but here I go anyway:
-Underwater areas! This is biased because I'm a mermaid, but you know it would be amazing. There's a lot of water on that map...it could be like other games where we have to hold our breath to swim and lose energy and die if we stay down too long. There could also be scuba, fishing, gathering pearls, and homes for us fish folk. :)
-When at home, items on shelves or in storage count as inventory for crafting (for cooking, etc)
-Only guests with keys can pick up items in your house (I'd like to let strangers in, but I don't trust them with all my stuff!) or at least an option to lock certain things
-Frame snapshots taken in game to hang on wall or give as gifts (perhaps make frames with woodworking? or a snapshotting II skill?)
-Ability to actually use furniture (sit on chairs, lay on bed - slight energy boost?)
-Better garden tools/systems to make it less tedious (plow for clearing plots? sprinklers for watering?)
-Mailbox on our home street
-Bees, beehives and beekeeping skill (for making honey)
-Make bags with fiber arts
-Distilling II/Brewing (for brewing beer)
-Locksmith/keycutting skill
-More functionality for musicblocks (if at home, able to play for whole room, or able to click and play from shelf, like a stereo)
That's it for now! :)