putting my hand on the lathe In Dune Messiah, they're going to replace the part where Paul compares himself with Hitler, and have him quote the victims of communism propaganda.
As I recall it was him teaching back into his own genetic memory and recalling something that would be for the benefit of the reader, while also demonstrating the gulf between him and Stilgar
The Jihad wasn't originally even a war, that was some bland Skynet ass shit the author's son put in. The Jihad was originally a philosophical reckoning of the dependence on machines humanity was developing and a rejection therein. Dune still has computers and technology far advanced compared to what we have but nothing that thinks like a human.
All of which makes more sense when one remembers Herbert lived in a pre-9/11 world where the people who knew the word Jihad would also know it means struggle and doesn't necessarily refer to a holy war.
It's still wild to me that the successors actually made the Butlerian Jihad about a war with AI. I thought it was quite obvious that thinking machines didn't mean machines with thought and cognition, rather they were simply tools that reduce the amount of thinking people did.
The origin of the name Harkonnen is Härkönen, a Finnish name. Herbert apparently saw that name in a phone book and thought it sounded Soviet. As always, libs do no research and just assume whatever the fuck they want.
he's not russian, he's just vaguely russian-coded to sound evil. he is evil, yes, but also herbert felt like painting him russian for reasons... he failed a bit because harkonnen was taken from a finnish surname afaik.
It's the next in the series, and Anya Taylor-Joy was brought in for a 30 second cameo in the latest one (as a character that presumably plays a bigger part later on), so yeah I think it's safe to assume they're going to keep going.