Bug [Trainers and Worgen Quests]

All trainers for the following classes are showing up:

Warrior -> Nothing
Mage -> Enchanting
Warlock -> Nothing
Rogue -> Tailoring
Shaman -> Nothing
Hunter -> Nothing
Paladin -> Engineering

Also -->

Cannot complete Save Krennan Aranas is bugged and you cannot save him, thus not continue the worgen questing line.