Nearly all the talk about the name has been Legion or Azshara related.
But the name really makes as much (or more) sense referring to an Azjol-Nerub themed expansion. Remember Azjol-Nerub? The (originally planned) raid/zone was cancelled in WOTLK (since admitted by Blizz and Ghostcrawler) and just a short instance was left in its place instead. Fans wondered why, and many of us hoped the real reason was because they figured the concept had so much potential that one day itd be better served as an entire expansion.
How would you feel about an Azjol-Nerub themed expansion? Perhaps quite similar to the Spider Kingdom fan concept that's been floating around for a while.
Reason for this thread is it seems 99% of the talk is Legion or Azshara related - so stop to consider how youd feel about Azjol-Nerub instead!
Just for fun edit:
GC via Cata Post Mortem Blog:http://us.battle.net/wow/en/blog/4519250
"For my money, the zone I am personally saddest about cancelling is not Abyssal Maw; it was the Azjol-Nerub quest zone in Wrath of the Lich King."
"@TyWorth I am personally a huge Azjol-Nerub nerd, but I can't ram through my pet projects single handedly. Maybe someday."