The upgrade system could benefit from a near total overhaul. Rather than having static damage/armor upgrades built in as perks, an ability to use Ascendant and Radiant material on any weapon or armor to increase its attack/defense until it reaches the current cap. If Bungie wants to preserve the Raid being required to reach the maximum level, then have a material drop from the Raid only be required to upgrade to the maximum Light level. This would allow players to customize their appearance how they see fit. Being able to hit max level even with Rare armor if they would want (only sacrificing the extra perks on a legendary piece.) This would allow older weapons and armor to be upgraded whenever a new DLC drops without any change to the gear to be made, just bump up the maximum attack/defense value. Done and done. Bump.