MN-Games launched a Kickstarter campaign for their Plotbuilder deck of cards. Go have a looksee.
From the campaign:
In an effort to build a story arc for NPCs on the fly, come up with a whole campaign idea, or even have background machinations boiling away out of immediate notice of the players, the Plotbuilder deck is designed to make everything simpler.
System neutral, the cards can deal with any setting from fantasy to the far future. They won’t solve all your problems as the details are left up to you to decide, but it will provide the framework for some juicy intrigue.