Does current schema's preclude adding new promotions?
In an nutshell no. Promotion types are set in the schema. Now comes the but. In the schema there are buffer entries incase SD want to add more in the future, these however do not seem to include new promotions only Citizen types. Hense why I have not done anything in regards to my post about promotion ideas. Its frustrating tbh. A game that could be so moddable, yet is not, due to restriction placed in the schema files. Depressing.