I don't think the Ghostbusters franchise will ever *quite* die, because the components of which it is (or should be) a compound - friendship, gentle character comedy, and broad, cheerfully-hokey spooks - is likely to remain just as appealing in 2026 as it was in 1984 or, probably, 1884. And if you wish to make a movie that sates potential audiences' hunger for that compound, and you inevitably want the security blanket of an established brand that is now deemed indispensable, who you gonna call?
Clearly though, any future Ghostbusters movie should have nothing to do with this refuse.