I'm levelling an orc shaman, and found the xp through Durotar to be x1. However, now that I have reached Crossroads, the XP rate appears to have jumped to x2.
Specifically, the quest "Lost in Battle" to find Mankrik's wife gives 2400xp to my level 14 character. Killing a lvl 12 Plainstrider (rested xp) gave 344 xp.
I immediately hopped back over to my level 14 Druid on Nighthaven (vanilla) and did the same quest - 1200xp. Killing a lvl 12 plainstrider (rested xp) gave 172 xp.
The official TBC FAQ specifically states x1 xp and no boosts of any kind.
Am I missing something? Has the position changed?