I just thought about an extension to Temples/Arena. AGORA! It would be a small square city with an open courtyard in the center surrounded by two long pillared structures on the sides and two large buildings with pillars and statues of N1Gods on the other sides. In the center will also be a couple smaller pillared shacks and gazebos and bathhouses or communal latrines.
that's the suggestion. I like the architectural design of the halls and such. You would be able to see both the Arena and Temples in the distance. Also a follow up map would be Parthenon: A long hall with pillars and statues and small rooms and two floors. The top one being long and open great for sniping, and the bottom filled with smaller rooms great for melee. Could also have a very small outside terrace on the perimeter.