The Keeper wrote:
Given the nature of the franchise, Egon could always appear in a sequel. Use old footage and make him look ghostly. They could even use it as the catalyst for the start of the movie, the funeral for their friend.
And I wouldn't mind seeing Egon slime Bill Murray's character.
Nice, and a scene with Egon sliming Peter would be worth the price of admission! I was thinking his (Egons) sudden death could have the guys considering disbanding in grief, but when a visit from Egons spirit brings information of a coming ghostly catastrophe they are reinvigorated into action.
Love that idea. It's sensible. We could also maybe see Egon hang out with Slimer
Although I would love it if he didn't immediately appear to them, but rather he give them signs that he's still around in the form of traits that used to annoy them when still around.