Kinda makes sense why it has to be CGI… Of all 4 original main actors, the ONLY one who can really pass for “about” the same age is “Winston”, with “Ray Stance” coming in a far second, followed by “Egon” as the third worse off. FORGET IT with “Peter”… Bill Murray has aged badly compared to the other guys.
We’ll have to wait and see. In all honestly, a lot of the CGI stuff is getting so good that you have a hard time telling what is real or what isnt. In 10 years, actors as we know it may be a thing of the past! With good CGI and voiceovers of the actual original characters, it might be pretty good.