Here is some ideas I have regarding tech groups for some nations. Some if it may be already taken care of, unessecary by some other reason, needs tweaking , or is simply not good. Well here it goes:
EUROPE:
Sweden: To orthodox until Gustav Vasa
Poland: To latin until Union with Lithaunia
Hungary: To latin until death of Mátyás Corvin
Ottoman Empire: To latin until the Effects of the provincial system or what that event is called.
Croatia: If independent it may be in latin same time as Hungary.
AFRICA:
Nubia: If still exotic then up to china or muslim.
North African coast from Morocco to, but not including, Mameluks: To orthodox
ASIA:
Karaman, Candar & Those: To orthodox
Bengal & Vijayanagar: Up to muslim, or rest of India down to china
Southeast Asia: Up to muslim (but only if Bengal and Vijayanagar are raised)
EUROPE:
Sweden: To orthodox until Gustav Vasa
Poland: To latin until Union with Lithaunia
Hungary: To latin until death of Mátyás Corvin
Ottoman Empire: To latin until the Effects of the provincial system or what that event is called.
Croatia: If independent it may be in latin same time as Hungary.
AFRICA:
Nubia: If still exotic then up to china or muslim.
North African coast from Morocco to, but not including, Mameluks: To orthodox
ASIA:
Karaman, Candar & Those: To orthodox
Bengal & Vijayanagar: Up to muslim, or rest of India down to china
Southeast Asia: Up to muslim (but only if Bengal and Vijayanagar are raised)