I think that’s the right take. The original movies had the straight guy, goofy guy, deadpan guy, and regular guy. You could get the wrong energy from an new all male cast too, like casting Chris Farley, David Spade, Adam Sandler, and Martin Lawrance together - it would be just too much of the same kind of comedic vibe.
I was thinking Egon=straight, Peter=deadpan, Ray=goofy, and Winston=regular guy.