In the desolate, prophetic world of “Dune,” the decline of spin-off ventures haunts like a whispering sandstorm. Once a thriving branch of the cinematic universe, these offshoot endeavors have wilted under the desert sun. Was it fate, or simply the failure to adapt to the ever-shifting winds of audience expectation? As we delve into the annals of “Dune,” let us unravel the mysteries behind this enigmatic decline, where prophecy intertwines with the echoes of forgotten stories.