[suggestion] Missed Leatherworking recipes

Hello!
I want to talk about recipes what not obtainable now because humanoids what dropped it before are gone after shattering.
1. Pattern: Heavy Scorpid Shoulders from Blackrock Battlemaster in Burning Steppes.
2. Pattern: Heavy Scorpid Gauntlets from Blackrock Soldier in Burning Steppes.
3. Pattern: Heavy Scorpid Leggings from Blackrock Slayer in Burning Steppes.
4. Pattern: Stormshroud Armor from Arkkoran Oracle in Azshara.
5. Pattern: Stormshroud Shoulders from Son of Arkkoroc in Azshara
6. Pattern: Stormshroud Gloves from The Windreaver in Silithus.

I asking about to add this recipes to another creature's loot table.
Reason to do that - Pattern: Stormshroud Pants still obtainable from vendor in Western Plaguelands, Pattern: Heavy Scorpid Belt drops in Blackrock Spire and its strange to have in game only one part of set. Also Stormshroud nice tanking and RP set and I don't see any reason to remove it from game.
I understand its not so big problem, but many collectors will be glad to get this patterns or items. Would be great if developers could take in account this request.

Second part of my thread about Leatherworking specializations.
It has been removed from game like Tailoring and Blacksmith specializations.
But when, for example, in Tailoring only restrictions was removed and all tailors can learn now recipes from any of previous specializations, in Leatherworking recipes from other specializations not obtainable anymore.
Thats why i want to ask about possibility to add it back to game.
Thank you for answer in advance.