.ALLIANCE:
.Human: Leo
.Dwarf: Sagittarius
.Night Elf: Cancer
.Gnome: Gemini
.Draenei: Libra
.Worgen: Virgo
.Pandaren: Ophiuchus
.Void Elf: Pisces
.Lightforged Draenei: Capricorn
.Dark Iron Dwarf: Aries
.Kul Tiran Human: Scorpio
.Mechagnome: Aquarius
: Taurus ??
.HORDE:
.Orc: Aries
.Undead: Pisces
.Tauren: Taurus
.Troll: Aquarius
.Blood Elf: Scorpio
.Goblin: Capricorn
.Pandaren: Ophiuchus
.Nightborne: Cancer
.Highmountain Tauren: Sagittarius
.Mag’har Orc: Leo
.Zandalari Troll: Libra
.Vulpera: Gemini
: Virgo ??
Sidenote: you can choose whatever Race/Class/Spec combinations inspired by your Astrology Houses and Ruling Planets.
Houses - (1st, 5th, 9th, and 10th) are generally the most significant; as well as the Inner Planets in your Astrology birth chart.
Warcraft zodiac (Classes and Specializations) - Warcraft zodiacs - Classes and Specializations
EDIT: Chinese zodiac western counterpart (my speculation/prediction)
Alliance: Taurus?? - year of the Snake = (Sethrak)
Horde: Virgo?? - year of the Rooster = (Arakkoa)
I mean I wasn’t expecting something else but still