Re: Out with the X and in with the Y
If we're talking about games, I think it's a stronger move to use an existing IP that already has a compelling back story, fleshed out characters, solid world building, etc... and then build the mechanics of the game to reflect these things. My guess is that most board game designers are not also compelling writers/story tellers, so instead of burdening themselves with coming up an interesting universe to set their game in, why not use a setting that is already mature and probably part of the social consciousness already? Let the writers do what they do best and let the game designers tell that story in a different light.
FFG seems to be the company that attempts the "new IP" thing the most with mixed reviews. The Terrinoth games and TI universe are their creations, but can anyone really say that those worlds are as compelling as something like Dune, Battlestar, Game of Thrones, etc? It seems like the video game world has had more success with this, but that's probably because that industry can afford to hire actual writers and basically make movies within the game to tell the story. Board games have a tougher time of it, unless you can get the players to do a lot of reading to familiarize themselves with the world. Probably not gonna happen. Even in video games... You can say that the Mass Effect universe is really developed, but how many people actually read the entire codex to get the story on everything in the game? Most probably just watch the cut scenes.