Jobin is not going to die he will be main villain since there has been duality between the Josuke and jobin for a long time for example when noruisoke was driving Josuke to the hishigata house he made him pick between a teddy bear and a robot he picked the teddy bear while in jobin room there were robots and there is also duality between them in the dawn the hishigata house so I don't think he will die and I think he will somehow survive also chapter 92 and 95 are pretty much the opposites for Josuke and jobin