Well, heres my take on the NPCs:
(Bold ones are the powerful ones)
Buguan: Pathetic Guangfei-propped up state.
Chancotol: Nondescript, Merchant Divotheist State.
Destre: Weak post-Trinlin state, under severe threat from Magland.
Fairhelt: Onetime enemy of Merhai, militarily powerful but economically weak nation.
Gamorrea: Recently civilized, cavalry based nation. Can be developed in many ways from here.
Guarela: Southern Bladeist state, nondescript.
Kalmar: Khemri vassal, though its population supports Veritas. Quite an interesting, if somewhat weak, state.
Magland: Powerful post-Trinlin state, poised to dominate southern Terrania.
Rozan: Undeveloped Trinlinist nation south of Guangfei. Could be developed many ways.
Sanx: Nondescript primitive Divotheist state.
Sintonia: Semipowerful Bladeist state in former New Veritas, embroiled in the war, generally a puppet of greater powers.
Syracia: Far eastern Azulian nation, nondescript. Only border is with powerful Kelios. Fighting pirates from the east.
Tir Tairngire: Pirian Oneists, quite powerful, but in a civil war.
Zemora: Scientific Divotheists, under grave threat from Adar (emu).