Different game content like items is cached by the client. This means if the game displays you an item, the client will save it to a local file to avoid traffic. 
 
	Elysium PvP and Nostalrius PvP having different stats on their items because of the progression. For this reason it can happen, that you will see item stats from Nostalrius PvP on Elysium PvE. 
 
	To get this issue fixed you have different options:
 
		Delete every time before you start the game the "WDB" folder, which contains the cache files
	
	
		Use for each realm another folder
	
	I've had the same problem and wrote for this reason a small start script like
 
#!/bin/bash
rm WDB -Rf
wine WoW.exe
	Please note that this script is for linux users.