Hey the DCFandome panel for the new Nubia book is up, watch it while you can. It does give some indications of what version of Nubia this is going to be and her backstory/connection to Wonder Woman in this book.
spoilers:end of spoilers
Effectively it’s the pre-crisis origin done modern day, she is literally Wonder Woman’s twin sister, and Wonder Woman will make an appearance.
https://www.dcfandome.com/schedule/w...2e?language=en