So I was going through the old world and doing the quests here and there, and I've already found a new joke.
One of the NPCs you rescue is a paladin, Jorgensen I believe was his name (or it could be one of the other NPCs in the questline)
If you keep them around for a while, they start chatting, and some of his lines include (paraphrased):
"I'm a paladin so obviously I'm the most important in the group"
"Sometimes I wake up, I feel like the Light has gotten weaker. I'm not as strong as I used to be"
Laugh, rage, do what you will. Let's share what other jabs the devs have put in for Cataclysm.