Since the dawn of times we have had the same HUD design and layout, and we all have come to love it. With the engine update coming (probably? next year) the opportunity should be taken for enhancing the visual experience in this regard.
A refreshing, less blocky, more "dynamic" HUD would be a blow of fresh air. My suggested changes:
~ Remove box-ness of the HUD elements
~ Higher resolution HUD elements (waypoint + objective icons, weapon icons, counter