Personally, I don't like the direction that the series took in that it started out as a very dark, serious political-oriented story and then its subsequent portable sequels turned to fantastic worlds, races, and powerful children.

I liked that Final Fantasy Tactics was about humans and demons, not the fanciful races of ancient Ivalice working together in harmony.

When I was younger, I used to think that there was potential in a sequel involving Arazlam Durai, wherein he discovers some type of conspiracy -- something like The DaVinci Code -- in the modern Ivalice.