Just two ideas. One, make divorce an option. It opens up for adaptations as new material comes out and others prior become mundane. Second, have it so that console players who use shields can place their shields onto their backs while not unsheathed. It would look good and makes sense, practically speaking. And it adds for a more immersible experience, also.
That's all. As a dedicated player I'd simply enjoy seeing the aforementioned additions in-game.