It looks like my memory of them being in Screaming Bell and Righteous Stand might be older than patch 3.0, although I’d have sworn I’d seen them more recently. Assuming that fix is working as intended this leaves:
Halescourge Empire in Flames The Pit The Blightreaper
+Horn of Magnus and Garden of Morr. I’m ok with their appearance in Engines of War, as that’s mostly a forest (a new line like “Strange. You didn’t meet them last time. Oh, well…” could be welcome)