The recent DuckTales series had it where Darkwing Duck was an older in-universe TV show that Launchpad loves. During the development of a movie reboot of the show, a young actor comes to replace the original in-universe TV Darkwing, who turns heel. This causes the new guy to become Darkwing Duck in the "real life" of the DuckTales universe, at Launchpad's behest. Then the OG Darkwing dons a yellow and red costume, thus becoming Negaduck. A later episode has some dude use a machine that pulls the fictional villains from the TV show into the DuckTales universe, thus giving the new Darkwing his rogues gallery. (My kids got us to watch the new DuckTales and it's actually pretty great as a parents-watching-with-kids show since it draws a TON from the Disney animation block from back in the day, especially in later seasons).

I was always under the impression that Disney was preparing for a spin-off Darkwing Duck from the new DuckTales. Guess they've decided to do something entirely different. Which, to be honest, is a little sad to me because of how great the new DuckTales turned out to be.