Hello everyone! The PTR has been updated with the following addition:
CLASSES- Warlock
Summon Succubus has been replaced with Summon Sayaad – Randomly summon your Incubus or Succubus. Warlocks may speak to the Warlock trainers in Stormwind or Orgrimmar to enact a pact with their Incubus or Succubus, ensuring that only they are summoned.