I expand my concept ideas outside of World of Warcraft only. My favourite MMO is Guild Wars 2. It's a refuge for people who bored to grind everyday, who bored farming same thing everyday, who bored to catch game rules for every patch release. It has different gameplay philosophy.
Note: I'm enjoy both MMO's WoW & GW2 :D
About Concept:
It's a roller beetle mount concept for Charr Lovers. Charrs are machines of War. This mount concept will match with their culture.