I'd very much love to see a merchant who can add more sides to multi-sided items. Specifically in mind are the Sophella magical clothing that come, off the shelf, with 2 sides(but same material) and can be unlocked to have more sides.

I very much love the idea of being able to have 1 item that fits a bunch of different clothing sets. If we could see more of this, outside of EG, that would be great. Especially since I do not believe Sophella made an appearance this last year at EG.