HeroQuest, Question about new expansions; are they compatible with the original version of HQ

The latest #Heroquest expansion has been announced at #Lucca2023: Against the Ogre Horde! This quest pack brings a BIG challenge, as well as a new way to play - the Arena!

Avalon Hill HeroQuest Kellar's Keep Expansion, Dungeon Crawler Board Game for Ages 14 and Up 2-5 Players Requires HeroQuest Game System to Play : Everything Else

Is HeroQuest 1st ed compatible with new expansions? : r/boardgames

A new adventure for 2023 ? : r/Heroquest

Painted Wizards of Morcar – Heroquest Expansion – Tim Dams

HeroQuest: Commander of the Guardian Knights Expansion

Avalon Hill HeroQuest Kellar's Keep Expansion – Hasbro Pulse

HeroQuest Companion App Expansion Update – Hasbro Pulse

EXCITING EXPANSION PACK: Expand your HeroQuest Game System with the Return of the Witch Lord Quest Pack. (Requires HeroQuest game system to play. Sold

Avalon Hill HeroQuest Return of The Witch Lord Quest Pack, Dungeon Crawler Game for Ages 14+, Requires HeroQuest Game System to Play

HeroQuest - Episode 2 - the Hasbro / Avalon Hill expansions