Charlaquin
Goblin Queen (She/Her/Hers)
I haven’t seen the book myself so @DavyGreenwind can correct me if I’m wrong, but I believe the guidelines for using old subclasses with the revised classes is that when you get the subclass at 3rd level you get all of its 3rd level and lower features; and if you would gain a subclass feature that has the same name as a class feature, you can choose which version to take. Unless the cleric has additional specific rules for old subclasses, I think you would still get the 1st level subclass feature at 3rd level. In the case of cleric subclasses that only granted weapon and armor proficiencies, those proficiencies obviously won’t stack with the proficiencies from the Protector divine order, but if you take Thaumaturge, you’d still get those weapon and armor proficiencies when you pick up your subclass at 3rd level. And for subclasses that granted cantrips, skills, and/or tool proficiencies, I believe you still get those, in addition to the benefits of either divine order option, you just get them at 3rd level now instead of 1st.