If he turns out to be the leader of the chromatic dragonflight, like everyone is suggesting, I will be disappointed.

Really? I can see all the pieces clicking together about it and think if Blizzard do it right it'll be a brilliant storyline, it all hinges on why he's changing the past (If he is the leader of course.)

I would be rather disappointed in him being an Aspect and all. From what I have heard if this is where the plots going hes using the infinite Dragonflight to prevent his own death. He already saw where the greed of Neltharion led, and how could he kill his own flight!? Its just messed up

I don't see him actually trying to stop his own death, he knows it'll come to pass. I'm not sure what I expect of him :3 gogo Metzen!

It could end up being a really good story even if he does turn out to be the leader of the chromatic flight, but I agree with Flamdo, for the most part. From a story perspective it seems like he should know better, and we've already done something similar with Malygos. Even Arthas' story is one where someone does evil in order to try to do good, and it's doubtful that Nozdormu's story will have anywhere near as much depth as Arthas'. It just seems lazy. Then again, they gotta find some way to populate the obsidian sanctum :P