Just about everything you mentioned above applies to Kaidan classes, except: Shinobi will be archetypes for alchemist, monk, ranger, rogue and sorcerer, with a Ninja prestige class available to all Shinobi classes.
Wu-jen is a word invented by Gary Gygax, yet Japan has many viable wizards from its history/folklore, I don't intend to carry GEG's fake spellcaster. Japan had Onmyoji which best represents a professional full time wizard. Japn had Jugondo which was a hedge wizard, so I'm going to use that for Sorcerer.
Shugenja - this deserves some explanation. Shugendo is a religion. Shugenja is anyone (a child, an NPC commoner) who follows the path of Shugendo. Whereas Yamabushi is a priest of Shugendo.
Christian is to Christianity as Shugenja is to Shugendo. Using shugenja to describe an oriental priest is the wrong term. So I am using Yamabushi as my 'shugenja', and it will be the PF Inquisitor.
Kannushi is a priest of Shinto, so that's Kaidan's cleric.
In Kaidan, Sohei is a variant paladin/anti-paladin and a LN 'paladin' (any lawful).
I intend to fix lots of old RPG mistakes regarding oriental settings with Kaidan.
GP