Maybe I’m just not attached enough to Ghostbusters (didn’t really grow up watching it but I like it just fine), but it seems like all these attempts to keep the franchise going are blithely ignorant of the fact that the original movie was a perfect combination of factors (cast, special effects, comedy/horror/sci-fi tone melding in a way that we take a lot more for granted these days, grimy New York), and regardless of what you may do to “revitalize” the franchise it’s not the concept of busting ghosts which captured audiences, but rather those unique people/time/place elements.
Another franchise I can think of that they keep trying to recapture the magic with over and over is Terminator; they just keep throwing a new one at us thinking we love Terminators 1 and 2 due to some specific element or story beat, when it boils down to “we like Terminators 1 and 2 because they’re interesting, good movies.”