I don’t think it would be successful, since the majority of comic buyers are older and want modern, dark and/or complex “adult” stories now. Myself - if they still made those kinds of books I might even buy them. The closest thing we have to them today would be the various animated universes: Batman, The Animated Series, Superman: The Animated Series, Avengers: Earth’s Mightiest Heroes, etc. Those are shows that I enjoy, my young son enjoys and my wife enjoys. People like Paul Dini, Bruce Timm, Man of Action and all the other writers and artists did an amazing job bringing old-style stories to life in the modern age; it’s too bad we can’t have comics in the same mold.