Found an article about G3, it has some new information:
"Clawdeen is half-werewolf, half-human and biracial, born to a werewolf mother who is Mexican and a human father who is Black.
With Dracula as her father, fans will be introduced to Draculaura's mother, a vampire of Taiwanese descent, as her storyline will dive deeper into her heritage. In embracing body diversity, the revamp of the original character has made her shorter and curvier than before.
Frankie Stein, the child of Dr. and Dr. Stein, is determined to not let societal norms get in their way. Frankie is nonbinary and uses they/them pronouns. Frankie is the tallest of the other ghouls and uses a prosthetic leg.
Lagoona is from the coast of Honduras and a proud Latina.
In Deuce Gorgon's story, fans who were already familiar with his mom, Medusa, will finally be introduced to his mother, Lyra.
Embracing its mission of acceptance and cultivating community, Monster High is partnering with DoSomething.org, one of the largest organizations exclusively for young people and social change that brings kids together and gives them a sense of belonging. Monster High and DoSomething will help teenagers foster meaningful relationships by providing a template for students to create welcome guides and welcome notes to share with younger students in their schools, to help them feel a sense of welcome and belonging at the start of the 2022 school year. Additionally, Mattel will donate $1 to DoSomething for each Ghoulia Yelps doll sold at Target. The funds will go directly to support mental health initiatives for young people."