I think it would would be cool to have more character customization such as maybe a custom armor set where we can select from a template of designs & shaders to make our own unique armor. Maybe the ability to re-roll perks on it to match with our play style. For example supportive perks for pve & maybe lone wolf style perks for pvp. Maybe restrict armor to be legendary. Possible to add the ability to give it immunity buffs to damage types such as arch, void etc. Also maybe an emblem editor tool to create our own emblem & place it on our armor. Maybe also a custom weapon limited to one per character. Just some ideas