Sorry, but your last line is sort of the problem. Blizzard has written themselves into a corner as you cannot have a single individual who represents an infinite set of variations for that individual. Unless Blizzard is saying that the Warcraft Universe is so restricted in its possibilities that Draka is Draka because she is Draka (i.e.: a character is the way they are, therefore they are that way; their nature is inherent and unchanging), there is no way for her to be the Draka that we have some knowledge of. For example, we understand that she is Thrall's mother, but there would be an infinite set of universes in which she is not Thralls mother, so her recognizing Thrall as her son (on the PTR) is inherently contradictory to the idea that she is all Drakas. Blizzard is either being very uncreative or is saying that the nature of characters do not change throughout all variations of the Warcraft multiverse.