and where is Nozdormu
Yeah Wrathion you have another brother named Sabellian in Outland but Blizz may have retconned him so you don't need to worry about it.
Canonically, Wrathion is unaware of Sabellian's existence (lucky for him!), so the narrative still works. It's also reasonable to assume there may still be other lesser black dragons out there, just that none are prominent enough to be on his radar. Like most things in Warcraft (and fantasy writing in general), the numbers and circumstances are fluid enough to meet the needs of the story, rather than hardset facts.
... wait did that Kalec/Wrathion dialogue just suggest ... Wranduin?
Wrathion: Humans often can be. Like all mortals, they are fickle beings, yet they hold great promise.Kalecgos: From what I have been told, certain mortals might say the same thing about you.Wrathion: Hmph. Complicated indeed..Mmhmmmm..... <3
Oh boy this is so exciting, it feels somehow like before the climax of a movie. Epic characters metting for their first time, sharing some time (speaking of time I wonder where's Nozdormu, somehow we know already but eh), I love all of this <3 <3!
Yeah, it's about time to kill another one of them.
Next expansion: The Void below (Enter the Void).