I love this mod. But one thing:

The Bi-religion system is a problem.
Itīs very very difficult to conquere a region with a different culture/religion and hold it without a rebellion in the next turns. You know there are no priests ( I know, and its good so) and the temples are not able to convert to my religion/culture probably.

Maybe you can add conversian abbilities to diplomats or to more buildings, if itīs possible?