Blizzard has temporarily disabled Conquest vendors in Cataclysm Classic due to a bug with items that can be purchased for Conquest. While this fix has no anticipated timeline, it will likely involve realm restarts, so players will have to wait to purchase their new PvP gear for some time.
At this time, we don’t know how long it’s going to take to fix.
Something we do know is – we’ll probably have to do realm restarts to make the fix for this work correctly and bring the Conquest vendors back from their trip. So you can keep an eye out for scheduled realm restarts to know when we have it all sorted.
Thank you for your patience!.