Just for fun, I updated my design for Illumina for her possible inclusion in the MOTUC line.
I made her arms white like the original, and changed her tiara and breastplate. I also followed Darkspecter idea and reused She-Ra 2.0 forearms.
So all parts are shared except the 2-pieces outfit, head and weapons. 4 parts in total, but since they most likely be PVC, they could fit on single steel mold, reducing the cost