If we're going by what the hearthstone gamepedia page says (not sure about sources for it), then Ethereal Peddler is in the last wing. Here's a link to it:
Everything else you've said is in line with it, but I feel like they'll move the portals around and some other cards as well to even out a few wings even if thematically they make the most sense where you've put them.
Firelands Portal, Enchanted Raven.
Medivh's Valet, Violet Illusionist, Silverware Golem, Moroes, Deadly Fork, Cloaked Huntress, Priest of the Feast, Kara Kazham!,Protect the King, Onyx Bishop, Ivory Knight.
Pompous Thespian, Kindly Grandmother, Barnes, Wicked Witchdoctor, Swashburglar, Ethereal Peddler, Cat Trick.
Pantry Spider, Zoobot, Menagerie Magician, Avian Watcher, Fool's Bane (Drops from Illhoof), Menagerie Warden, The Curator, Nightbane Templar, Arcanosmith, Spirit Claws, Purify.
Runic Egg, Arcane Anomaly, Netherspite Historian, Prince Malchezaar, Moat Lurker, Book Wyrm, Arcane Giant, Medivh, the Guardian, Moonglade Portal,Ironforge Portal,Silvermoon Portal, Maelstrom Portal, Babbling Book, Malchezaar's Imp.
Can we just buy the last one?
Let me change your mind...
Prince Malchezaar in prologue imo.
If we're going by what the hearthstone gamepedia page says (not sure about sources for it), then Ethereal Peddler is in the last wing. Here's a link to it:
http://hearthstone.gamepedia.com/One_Night_in_Karazhan
Everything else you've said is in line with it, but I feel like they'll move the portals around and some other cards as well to even out a few wings even if thematically they make the most sense where you've put them.