Originally Posted by Blizzard
(Blue Tracker / Official Forums)
Earning reputation with various factions has long been an important part to World of Warcraft and as time has gone on, we've made tweaks and changes to the system to make it more interesting and to give players access to unique items. For example, we recently hotfixed the game to apply a change to some reputation items which you can read about in our recently updated blog that allows players to purchase certain items much sooner. And we're not done!
Coming in a future patch, earning reputation is going to become much more fluid. Basically, once one of your characters has reached at least Revered reputation with a faction, all other characters on the same Battle.net account will then earn reputation with the same faction at twice the rate. Going one step further, and as an added bonus, your main character who reached Revered will also begin to earn double the reputation as he or she climbs to Exalted.
Here's a simplified break down:
Any single character earns Revered reputation with a faction
All other characters on the Battle.net account begin to earn double reputation for that one same faction
The Revered character earns double reputation as he or she works toward Exalted
We’ll keep you posted as this change is closer to being implemented. In the meantime, we’d love to hear your feedback!