Well, the Ravenholdt or Riot folks might have to "or Riot," but we got some clarification on the Rogue class hall that I think should satisfy most people.
The Hall will be in Dalaran's underbelly, yes, but it's a whole new area that's going to have more of a Speakeasy vibe - a place with a big iron door where you have to know the password to get in, but once you do, it's a classy joint where Rogues of all walks secretly pull the strings of society.
This is, barring some kind of Illuminati/Freemason-style conspiracy lodge (note: I don't actually think such conspiracies exist, or if they do (the Freemasons are definitely a thing, but it remains to be seen if they can really be called a "conspiracy,") they're much less powerful than they are made out to be) pretty much exactly what I was hoping for.
Ravenholdt, if it were re-done in some interesting way, could have served this role, but I think the idea of a place of luxury hidden within the scuzzy underbelly of a city is exactly the kind of thing a Rogue would go in for.
My hope, though, is that it's instanced somehow to curb Dala-lag, especially given that Mages will apparently also have their hall in the City (though again, it'll be a hidden location in the city.)
So, no dank sewers for Rogues - or at least, no dank sewers once you've made it inside. I really, really, really hope there's a bar with a jazz band playing in there.
(Quick history lesson for those of you unfamiliar with the term "Speakeasy:"
During Prohibition in the 20s and early 30s, the sale and manufacture of alcoholic beverages was made illegal by a Constitutional Amendment. Obviously, people didn't want to stop drinking booze, so it just put the industry underground.
Speakeasies were basically just bars or night clubs that served alcohol, but given that it was illegal, they were often hidden within other businesses. For example, you might have a laundromat with a hidden door in the basement that led to the bar, and you'd have to know a password so that cops couldn't find it.
Obviously, Prohibition ended, with the 21st Amendment repealing the 18th. However, these days there are still Speakeasies - some of them might be to avoid having to get expensive liquor licenses, but many are basically just there for the fun of all the passwords and play at secrecy.)