end of dune novel

No. While Dune 2 may end a particular part of the Dune story, the Dune universe is expansive. There are other books, movies, and potential adaptations that continue to expand on the lore and tell different aspects of the story.

The final ending of the six episodes of Dune was in the sixth episode, Sanctum: Dune. In this ending, the Bene Gesserit defeated the Honored Matres who had returned from the Scattering and became Mother Superior. Sheeana took the sandworm aboard the no-ship and left Temple Planet. They named the no-ship Ithaka. Duncan Edgar had a hunch that two You-Know-Who had been tracking the Ithaka and trying to capture it. In order to escape tracking, they entered the folded space and returned to the normal universe safely with the help of the Time Oracle. The Tleilaxu Face Dancers killed the living on each planet and transformed into them. The author did not explicitly state Siona's fate, but the first few books mentioned the Great Famine and Scattering, as well as the prophesied invisibility genes that Siona and Idaho's descendants possessed. In general, the ending involved the fate of many characters and the development of events, but the specific details were not mentioned.

Dune 2 did not have an ending egg.

Dune 2 did not have an Easter egg at the end of the movie. Some documents stated that Dune 2 did not have an Easter egg at the end of the movie. The movie's narrative was fully presented at the end, and there was no suspense or unsolved mystery as an Easter egg. Director Villeneuve said that he did not want to be bound by the Easter egg and hoped to have more space for creation. Therefore, Dune 2 did not have an end-of-the-movie Easter egg.

No, it's not necessarily the end. There could be potential for more installments or spin-offs depending on various factors like audience reception and the creator's vision.