Inspiration for Plot Driven Games

If you're looking for inspiration for designing an original story game, I suggest this book, 20 Master Plots and How to Build Them. It's designed as a handbook for fiction writers, and it includes descriptions and writer's checklists for 20 different plots, like romance, exploration, and "wretched excess."
Most rpgs follow the exploration plotline or one or two of the others. If you are the sort of story game designer who can write rules at the plot level rather than the character level, you could use one of the other 18 plots as the basis of your game.
That's not to say I dislike character driven, actor-stance games. Just to say that I think there's room on the market for more plot driven, writer-stance and director-stance games.