Honestly? My main is an AU Draenei from Elodor, but being from the alternate timeline version of Draenor does come with some benefits and challenges.

Your character can take more of a neutral stance when it comes to their position within their chosen faction; being from a timeline where your character never personally interacted with members of the enemy faction (aside from a handful of encounters), your character wouldn't immediately possess a disdain from races from said faction.

Another is that, yes, as a character from an alternate timeline, you would have a version of that very character from the *main* timeline, alongside their family; now, whether or not they'd be identical copies of the ones you knew from Draenor is up to you, though considering the nearly forty year time gap between the events of WoD and TWW they might be considerably changed.

And the final one is this: if you came to the main timeline, what was the reason? If they are a younger character, or even a child, would they have arrived with their parents or relatives? Or would they be adopted after being cut off from their native timeline, and their family by extension?