Aries: Time travel/alternate draenor
Taurus: obligatory troll raid
Gemini: characters getting corrupted and turning evil
Cancer: dragon aspects getting powers to fight deathwing, another dragon aspect
Leo: Thrall
Virgo: female characters getting married off or disappearing
Libra: New Races vanishing after the expansion is over
Scorpio: Old gods corrupting everything
Sagittarius: “the draenei were an invasive species”
Aquarius: King varian’s missing mother
Pisces: Neptulon vanishing forever