Should Ogre and Vrykul be included in WoW in the future, I think they will have classes somewhere along these lines:
Vrykul - Alliance:
-Warrior
-Paladin
-Death Knight
-Hunter
-Rogue*
-Mage
-Priest
Ogre - Horde:
-Warrior
-Death Knight
-Hunter
-Shaman
-Rogue*
-Mage
-Warlock
*- I decided to include Rogues as a leather class for both of them, because among Rogue, Druid, Monk and Demon Hunter - Rogue was the obvious choice
- Also Vrykul and Ogres do not think would consider the way of the rogue honorless, unlike Draenei and Tauren, even if Vrykul and Ogres would be just as tall as them - Orcs don't consider it honorless either despite being all about honor
- Also Vrykul and Ogres don't have clapping hooves unlike Draenei and Tauren
Addendum:
The traditional dichotomy of alliance having Paladins and Priests and Horde having Shaman and Warlock are also kept intact with these decisions.