I'm bored at work. Here's my list of race-exclusive Class Cosmetic effects that could be introduced with Glyphs. I'm imagining the scribe to make a "Glyph of Racial {Skill}", that when 'unpacked' (like a blingtron gift) becomes the appropriate soulbound glyph for the class/race combo unpacking it. Class/race comboes without one will get an error and the yet-to-be-unpacked glyph remains as such and BoE. Instead of applying glyphs to seperate abilities, these glyphs could be applied to an entire Specialization at once.
This list includes only CURRENT race/class combinations. I'm eyeballing you cautiously, Pandaren Death Knights and Night-elf paladins of Elune.
I'll keep an eye on this thread if it takes off, so if people add their own ideas (which are both fitting and following the format) I'll edit this post to add them.
Human:
Death Knight:
Hunter:
Mage:
Glyph of the Kirin Tor - Applied to: Arcane Specialization - Your Arcane Spells now have a pink hue to them. Arcane symbols are now the complete sigil of the Kirin Tor.
Monk:
Paladin:
Glyph of Uther's Might - Applied to: Retribution Specialization - All Effects using the Ashbringer and other swords, instead use a large, two-handed mace.
Priest:
Rogue:
Warlock:
Warrior:
Dwarf:
Death Knight:
Hunter:
Mage:
Glyph of Animated Ale - Applied to: Frost Specialization - Your Water Elemental is now a Brew Elemental. Do not drink.
Monk:
Glyph of Barley - Applied to: Brewmaster Specialization - All effects involving alcohol are enhanced with an extra frothy finish.
Paladin:
Glyph of the Ancient Anvil - Applied to: Protection Specialization - Hammer of Justice instead drops a holy anvil on your opponent. Guardian of Ancient Kings summons an Ancient Mountain King.
Priest:
Rogue:
Shaman:
Warlock:
Warrior:
Glyph of the Mountain King - Applied to: All Specializations - Avatar turns your skin to steel and changes your size to 150% instead of 120%. For Khaz Modan!
Gnome:
Death Knight:
Hunter:
Mage:
Glyph of the Kirin Tor - Applied to: Arcane Specialization - Your Arcane Spells now have a pink hue to them. Arcane symbols are now the complete sigil of the Kirin Tor.
Monk:
Priest:
Glyph of the Medic - Applied to: Holy Specialization - All effects of your healing abilities now more closely resemble those of First Aid.
Rogue:
Warlock:
Warrior:
Night Elf:
Death Knight:
Demon Hunter:
Glyph of the Master - Applied to: All Specializations - Your Demon Form used in all abilities now more closely resembles the Demon Within of Illidan Stormrage.
Druid:
Hunter:
Mage:
Monk:
Priest:
Glyph of the Moon Priest/Priestess - Applied to: Holy Specialization - All effects of your healing abilities now instead use the soft blue glow of moonlight.
Rogue:
Warrior:
Draenei:
Death Knight:
Glyph of the Unwilling Servant - Applied to: Unholy Specialization - Whenever using an unholy ability, your sigil of the Naaru appears, only to spark and fizzle violently.
Hunter:
Mage:
Monk:
Paladin:
Glyph of the Naaru's Might - Applied to: Retribution Specialization - Symbols in your abilities instead show an image of a Naaru. You learned from the source!
Priest:
Glyph of the Naaru's Grace - Applied to: Holy Specialization - Symbols in your abilities instead show an image of a Naaru. You learned from the source!
Shaman:
Warrior:
Worgen:
Death Knight:
Druid:
Hunter:
Mage:
Priest:
Rogue:
Glyph of the Ripper - Applied to: All Specializations - Abilities involving the blood of your enemies are even bloodier than normal.
Warlock:
Warrior:
Tushui Pandaren:
Hunter:
Mage:
Glyph of Animated Ale - Applied to: Frost Specialization - Your Water Elemental is now a Brew Elemental. Do not drink.
Monk:
Glyph of Contemplation - Applied to: All Specializations - Your Meditative-style abilities such as Transcendance, Zen Pilgrimage and Zen Flight show the blue hue of a contemplative, calculating mental state.
Priest:
Rogue:
Shaman:
Warrior:
Kul-Tiran Human:
Druid:
Glyph of the Drust - Applied to: All Specializations - The effects of all abilities involving roots and leaves appear more barren and thorned.
Hunter:
Mage:
Monk:
Priest:
Rogue:
Shaman:
Glyph of the Tidesage - Applied to: Restoration Specialization - All your healing spells appear more aquatic. Your already aquatically themed spells are even wetter!
Warrior:
Dark Iron Dwarf:
Hunter:
Mage:
Glyph of Animated Ale - Applied to: Frost Specialization - Your Water Elemental is now a Brew Elemental. Do not drink.
Monk:
Paladin:
Priest:
Rogue:
Shaman:
Glyph of Old Allegiance - Applied to: Elemental Specialization - All your abilities involving fire are touched by the Flames of Ragnaros.
Warlock:
Warrior:
Lightbound Draenei:
Hunter:
Mage:
Monk:
Paladin:
Glyph of the Naaru's Might - Applied to: Retribution Specialization - Symbols in your abilities instead show an image of a Naaru. You learned from the source!
Priest:
Glyph of the Naaru's Grace - Applied to: Holy Specialization - Symbols in your abilities instead show an image of a Naaru. You learned from the source!
Warrior:
Void Elf:
Hunter:
Mage:
Glyph of the Cold Embrace - Applied to: Frost Specialization - All effects for abilities involving ice are now infused with the void's cold chill, appearing as darker ice.
Monk:
Priest:
Glyph of Emptiness - Applied to: Holy Specialization - All the effects of your healing abilities leave a shimmer of darkness in its wake. Is this inverted light?
Rogue:
Warlock:
Warrior:
Mecha-Gnome:
Hunter:
Mage:
Monk:
Glyph of Nanotech - Applied to: Mistweaver Specialization - All effects involving mistweaving instead invoke a swarm of repairing nanobots.
Priest:
Glyph of the Medic - Applied to: Holy Specialization - All effects of your healing abilities now more closely resemble those of First Aid.
Rogue:
Warlock:
Warrior:
Orc:
Death Knight:
Hunter:
Mage:
Monk:
Rogue:
Shaman:
Warlock:
Warrior:
Glyph of Blade Mastery - Applied to: Arms Specialization - Your Charge ability has you appear at your target, briefly leaving an illusionary afterimage where you once stood. Your critical strikes, Whirlwind and Bladestorm abilities are extra flashy, showing off your expertise on the battlefield.
Troll:
Death Knight:
Druid:
Glyph of Tropical Fauna - Applied to: All Specializations - The effects of all abilities involving roots are replaced with vines. The effects of all abilities involving leaves are now more vibrant and colorful.
Hunter:
Mage:
Monk:
Priest:
Rogue:
Shaman:
Warlock:
Warrior:
Tauren:
Death Knight:
Druid:
Hunter:
Monk:
Paladin:
Glyph of the Sunwalker - Applied to: All Specializations - All your effects involving the Holy Light now use the warmer, more orange light of An'she instead.
Priest:
Glyph of the Seer - Applied to: All Specializations - All your effects involving the Holy Light now use the warmer, more orange light of An'she instead.
Shaman:
Warrior:
Forsaken:
Death Knight:
Hunter:
Mage:
Monk:
Priest:
Glyph of the Martyr - Applied to: Holy Specialization - All your effects involving the Holy Light now sear your body. Through your suffering, let your allies be healed.
Glyph of Emptiness - Applied to: Holy Specialization - All the effects of your healing abilities leave a shimmer of darkness in its wake. Is this inverted light?
Rogue:
Warlock:
Warrior:
Blood Elf:
Death Knight:
Demon Hunter:
Glyph of the Phoenix - Applied to: All Specializations - All abilities involving your demonic wings now show wings of pure flame, instead. For the Sunwell!
Hunter:
Mage:
Glyph of the Kirin Tor - Applied to: Arcane Specialization - Your Arcane Spells now have a pink hue to them. Arcane symbols are now the complete sigil of the Kirin Tor.
Monk:
Paladin:
Priest:
Rogue:
Warlock:
Warrior:
Goblin:
Death Knight:
Hunter:
Priest:
Glyph of the Medic - Applied to: Holy Specialization - All effects of your healing abilities now more closely resemble those of First Aid.
Rogue:
Shaman:
Glyph of Natural Income - Applied to: All Specializations - Your Fire Elemental/Primal Fire Elemental is now an elemental made of molten gold. Your Earth Elemental/Primal Earth Elemental is now an elemental made of animated gold coins. Your Storm Elemental/Primal Storm Elemental now has several completely legitimate goblin contracts swept up in its winds.
Warlock:
Warrior:
Huojin Pandaren:
Hunter:
Mage:
Glyph of Animated Ale - Applied to: Frost Specialization - Your Water Elemental is now a Brew Elemental. Do not drink.
Monk:
Glyph of Decisiveness - Applied to: All Specializations - Your Meditative-style abilities such as Transcendance, Zen Pilgrimage and Zen Flight show the red hue of a pro-active, hot-blooded mental state.
Priest:
Rogue:
Shaman:
Warrior:
Zandalari Troll:
Druid:
Hunter:
Mage:
Monk:
Paladin:
Glyph of Rezan's Return - Applied to: All Specializations - Symbols in your spells are replaced with the searing gaze of Gezan. He will return.
Priest:
Glyph of the Loa - Applied to: All Specializations - Symbols in your spells are replaced with the Loa of your Embrace of the Loa choice.
Rogue:
Shaman:
Warrior:
Mag'har Orc:
Hunter:
Mage:
Glyph of the Iron Star - Applied to: Fire Specialization - Your Pyroblast now looks like a miniature Iron Star. Your Meteor is now a falling Iron Star. Your Rune of Power now resembles the old Draenor sigils of Primal Fire.
Monk:
Priest:
Rogue:
Shaman:
Warrior:
Nightborne:
Hunter:
Mage:
Glyph of the Nightwell - Applied to: All Specializations - When channelling any spell, you appear to be levitating with power, surrounded by the Nightwell's glorious energies.
Monk:
Priest:
Rogue:
Warlock:
Warrior:
Highmountain Tauren:
Druid:
Hunter:
Glyph of the Mountain Hawk - Applied to: All Specializations - Any ability that summons a temporary beast other than your regular companion has a 75% chance to summon a Highmountain Eagle.
Monk:
Shaman:
Warrior:
Vulpera:
Hunter:
Mage:
Monk:
Priest:
Rogue:
Glyph of the Thieving Rascal - Applied to: All Specializations - Pickpocket can now be used on players and instead of gold, steals their pants for 10 seconds. How did you..?
Shaman:
Warlock:
Warrior: