I completed the game after a 100 hours on hard/casual. The last battles were great. Long live the empire and boo on Rhea .
I married Sothis in the end for some reason. She was already nagging my character in his own head for years so why change now .
And let not forget: goddess > empress.
I will hold off on a playthrough for the other two houses untill the DLC drops.
In the wilderness we go alone with our new knowledge and strength.