" If there's one thing people can agree on more than anything else is the fact that the system is a bitch. Especially when it comes to territory building. It pretty much treats a territory like a person so the caveat to upgrading a territory is just as important. For a territory, Type translates to race, which is basically what sort of era your territory is based on.
But beyond era it is also a theme or genre. There are quite a few types of territory, and classes. Of the ones I know, territories can be; Cyberpunk, advanced Magic civilization, Techno-Magicae, Old West, High Fantasy, Low Fantasy, Urban, Steampunk and a few others. In fact some territories can grow to be so powerful that they now become the template for a world, influencing the way the system works on that world.