Royal Apothecary Society is still around and quite active! 
You can usually catch us RPing in Tarren Mill or the Sludge Fields, as our guild is currently based out of Hillsbrad Foothills (and has been since the fall of the Undercity).
We typically have multiple weekly events which begin between 6-7:30pm server time. Our roleplay style is primarily member-driven, with IC advancement through the ranks earned through active roleplay and event hosting. We currently only accept undead characters, and I’d classify us as Heavy RP in terms of our focus.
However, several of us (myself included) also enjoy raiding, PvP, and Mythic+, so you’d definitely have some folks to enjoy the gameplay aspect of WoW with as well.
And in terms of our stance on loyalists, well—cough I have no idea where you’d find any of those cough 
—but if there are some hiding among the Horde, I suppose it would make sense for them to be apothecaries…
You can check out our forum post here! [H-RP] <Royal Apothecary Society>
Feel free to contact Plagueguts, Seenwood, or Maerlyn in-game if you have any questions or are interested in joining.
For the Dark Lady Horde! 