"If superheroes are old, let's create something new."
Ironically, this opinion ended up being the launching pad for a lot of new characters, stories and tropes that showed up in comics in the late '80s and the '90s. People were getting tired of superheroes back then too, and then characters like Swamp Thing and John Constantine started gaining popularity, works like Frank Miller's The Dark Knight Returns and Alan Moore's Watchme painted their superheroes in a completely different light, and independent imprints like Image Comics, Dark Horse Comics and Chaos! Comics sprang up and started giving the market a much-needed kick in the ass. And all of this actually prompted Marvel and DC to at least try to start diversifying their stories and characters a bit, because all of those good non-superhero stories in the '90s? They were selling, and they were selling hard.
And now, after about twenty years, it seems we've come full-circle. I can't help wondering what that's going to mean...