The storytelling has greatly improved with PoF. What (narrative) techniques did you look at to make those improvements? My assumption is that the lower amount of (main) allies helped a lot to develop better characters.
A smaller cast of characters definitely helped--it allowed us to spend more time with fewer characters and have more and more meaningful interactions with the folks in your party.
We also looked at how we were using Cinematics and decided that the more we could keep the player in control (via in game action instead of a cutscene), the stronger the player's narrative experience would be.