I had some ideas after playing the alpha release before the last updates. Maybe some features from Rome Plus could be adopted in Roman government. The mod has an interesting feature of Roman adoption and successor apointment, among other things. I think a combination of tanistry and the RP's feature of successor apointment could also be used to mimick the succession style of the Roman empire. I think it is especially close to Nerva-Antonine succession. By modding tanistry to be ok for the government type, it is possible. Maybe these features could also be used for the minor titles within the Roman Republic as well. Heir designation may be an interesting option as well, but the feature from RP can replace it, I think, and I don't know if heir designation can be modded for different variables other than religion.
I think the religions from When the World Stopped Making Sense may serve as a model for some of the religions that are still to be developped. Personally, I think they did a great job. However, you can take different paths from the ones they chose. Personally, I also feel like Pluto/Hades may not be a good option for replacing Satan in religion-related events. He was a fearsome god, but not a tricky or evil deity concerned about toying with mortal lives. Maybe "the Fates", "the Furies" or a generic "evil spirits" would be better, in my opinion. It's hard to adapt non-dualistic religions to events based on the mindset of Christianity, but I think these options may sound more natural.
I think the religions from When the World Stopped Making Sense may serve as a model for some of the religions that are still to be developped. Personally, I think they did a great job. However, you can take different paths from the ones they chose. Personally, I also feel like Pluto/Hades may not be a good option for replacing Satan in religion-related events. He was a fearsome god, but not a tricky or evil deity concerned about toying with mortal lives. Maybe "the Fates", "the Furies" or a generic "evil spirits" would be better, in my opinion. It's hard to adapt non-dualistic religions to events based on the mindset of Christianity, but I think these options may sound more natural.