So currently there are TC Center ornaments and customizable flags, a proposition I would like to make is the ability to customize these based on civ, so For instance I could have the Saint statue with the HRE and when I pick the English I could have Eleanore or the Bowman (whatever I set as the faction statue) instead without having to change the object manually if I wanted to swap before a game when I decide to change civ.
More customization is always great in my opinion so yeah.