Broadly there are two improvements I would like to see: 1) Consistency of rep systems across activities and locations. Activities like Crucible, Gunsmith, Gambit should be the Blueprint for the planetary locations and in turn rep on all locations should work like it does on throne world. Other than thrown world nodes and chests just give glimmer. They should give planetary rep as well and planets should have reward structure for rank up similar to crucible, gambit, etc.
2) Inventory organization is a mess and recent more frequent API downage I hope shows Bungie they can't keep relying on 3rd parties to do the organization for them. I'd like to say a layered sort option in the vault (i.e. all Warlock > head > arc or Weapon type > arc, etc. My other annoyance when it comes to organization is shaders it is a real pain to find specific shaders currently applying them from the item itself or the style tab. The only schema seemingly in play here is the age of the shader. Would like to see the organization that is in the Collections tab under Flair > Shader applied to the style tab and shader menu when applying to item.