More storage, indoor and outdoor, would definitely be welcome because of all the seasonal items. I'm in the middle of redecorating and looking at all the items I have stored both in the Storeroom and on my retainers that I hold specifically to use for decoration during certain holiday events. While I'll desynth/vendor the inexpensive ones easy to obtain, there are many that don't fit that definition due to rarity of materials needed to craft them.

Considering the storage is tied to the house and not the character, I would hope that it should be possible to increase those limits without undue strain on the game.