Speculation:Black Citadel=Helfire Citadel,originally. Edit
The first sentence of the discription in the Black Citadel(TFT) page is "The Black Citadel was a menacing structure in the Hellfire Peninsula region of Outland'. It was supposed to be the same one on the Peninsula where Illidan's forces defeated Magtheridon.
The Black Temple in the Burning Crusade looks more like Illindan's new headquarter/refuge after the defeat in Northrend in the timeline of WOW(in the original Warcraft timeline,he might have been set to be killed by Arthas and the Draenei are not relatives to the eredar.).
As described in Black Citadel and Temple,the reason why designers decided to set the two fortresses/dungeons to be the same one has not been revealed. I deem that an oversight or intentional tampering the story for some reason. Sleeplust (talk) 15:07, September 17, 2015 (UTC)
- Yeah, this aspect of lore is definitely confusing. It seems like the Black Citadel really was Hellfire Citadel, but apparently Metzen or someone wanted to move Illidan to the Temple of Karabor, likely as they were developing the Burning Crusade expansion. Much of the draenei lore seems to be retconned into the story, but you have to admit, it is still pretty cool. -- (talk · contr) 18 Sep 2015 10:04 AM Pacific