Mythic promises that the FAQ will be updated with new information in the future, but doesn't say what kind of information it'll be.
The FAQ has some helpful information if you have those specific questions, of course. If you want a more in-depth and badass guide to pre-ordering WAR, though, check out our WAR collector's edition pre-order guide. Which retailer distributes codes in the most helpful way? Which one gives you the best extra goodies? It's all there!