The upgraded versions of this commission are:
None of the Argent Dawn commission trinkets are obtainable by players anymore, as the associated quests were removed in Cataclysm. (In the case of the epic versions, they were made unobtainable in Wrath of the Lich King.) They still work, however you won't be able to turn in any of the scourgestones - Minion's Scourgestone, Invader's Scourgestone, and Corruptor's Scourgestone - that drop.
If you lose or destroy your Argent Dawn commission trinket, you can still speak to Argent Quartermaster Hasana (H) or Argent Officer Pureheart (A) to replace it.