An idea came to me after reading this thread. If Paizo were to do an AP dealing with time travel, I think it would work better as Quantum Leap rather than Chrono Trigger. Some temporal macguffin has caused the time stream to go outta whack, and therefore the party would travel to various points in prior adventure paths.
Never actually crossing paths with the heroes of whichever path they jump into, but something off camera, where something needs to be done to make sure things go the way they should.
