Currently the game has a significant issue with inventory management (or a lack there of). Further, outside of trophies and storage boxes housing is mostly a vanity pursuit and does not really impact the standard game.
I would like the devs to add a “Magical Mannequin” (or something that achieves the same goal) that would allow you to apply 6 items (head, body, gloves, boots, pants and earing) to it that would allow your character to gain those benefits permanently. This would not work for PVP/PVE perks but rather for armor sets that we only wear while doing very specific tasks like refining (accumulation perks) or crafting gear (like arcanist expertise). A change like this would help reduce the amount of inventory clutter we all carry around while also helping flesh out the furnishing skill in a way that impacts the game through some much needed QOL.
On a semi-unrelated note, it would also be nice if the trophy limit of 5 per house was removed. At this point changing your trophies is really just an annoyance more than anything.