I found this on Tumblr, the name is Team LoliRock and they are the production team behind LoliRock cartoon. They posted "If you love the episodes Xeris and Shanilla Surprise, you'll love what we prepared for you. We might actually see the 32 princesses of Volta or the siblings of Lina and Caressa! Then the princess might get an upgraded form just like Iris did. Please visit them in Tumblr and Youtube.