What we do know is this:
- Aman'thul, The Highfather empowered him to guard time itself and police the ever-spinning pathways of fate and destiny.
- As a lesson so that he would never think his power so great and terrible that he had to answer to no other, Aman'thul had also granted Nozdormu with the knowledge of his own demise.
- Nozdormu is seen briefly at the Bronze Dragonshrine during the quests [Mystery of the Infinite] and [Mystery of the Infinite, Redux], where he appears in a ethereal state above the Shrine itself. It's not confirmed one way or another if he's there observing the situation, helping the Bronze, or assisting the Infinite.
- During the entirety of The Burning Crusade, and most of Wrath of the Lich King, Nozdormu is away on a "quest" (as stated by Chromie), and his whereabouts are unknown. Ruling the Bronze flight in his stead are Anachronos (his son), Prime Consort Soridormi (his mate), and Andormu and his sister Nozari (the leaders of the Keepers of Time).
- He is both blessed and cursed: he knows when and how he will die. Until that time comes, he cannot perish.
- He is quoted with the following:
(italics and bolding added by me for emphasis)“I know what you hide from her, from usss. It is my fate and curssse to know such things and be unable myssself to prevent them. Know that I now asssk for forgiveness for the wrongs I will caussse you in the future, but I mussst be what I am destined to be... as Malygos is.” (speaking to Krasus, referring to Deathwing's impending betrayal)
Now, this leads me to believe that Nozdormu *is* in fact the creator and leader of the Infinite Dragonflight. I also believe that the purpose of the Infinite is to change the timeways in a way that prevents and/or circumvents the situation that leads to Nozdormu's death. Afterall, he knows when he will die, so he has had ample amounts of time to plan a way around it if he wanted to. He may be attempting to circumvent his own death for an altruistic reason (maybe he believes his work is not done?) or he could simply have the instinct to stay alive like most sentient beings do. However, a good intention with evil actions is still Evil, and thus it's why we're brought into the conflict against the Infinite.
Lastly, I'd imagine what Nozdormu was shown was the Player Characters slaying him, and as such, altering time to ensure they never achieve and reach the pinnacles of power that they will have is the easiest way to ensure he stays alive. (if you look at what the Infinite has it's hands in and think about how vastly different your player character's existence would be, it's a huge difference)
Thoughts?