In the maintenance build coming up in March, glory will be removed. 2 Blog posts already published about it
Use all of your glory boosters as they will be phased out
Fill out your PvP locker as they are important in the new PvP system, salvage any extra weapon/armor you got
Use your PvP crafting mats
You can use the PvP crafting materials to make weapons/armor you want to put in your 'Locker' for sPvP. Supposedly the PvP Weapons and Armors will not be deleted with this patch appears. Anet, plans to allow players to carry PvP Armors/Weapons to PvE world. You will still be able to spend glory after March 18th, for a limited time. Some players are using their glory to buy items they can sell on the trading post. Others are using their glory to buy Tome Of Knowledge to level their alternate characters (one extra level per tome of knowledge).
René Borrmann (GW2 Player) I level'ed my alt via the tomes 60 lvls. Best glory use ever xD