That’s what Gears 5 is for (and somewhat Gears 4). It brings her back into the spotlight because her family lineage is relevant to Kait’s story. Though she was a huge part of the original trilogy, she isn’t directly relevant to a story they’re trying to tell about rebuilding humanity after the Locust War. She wasn’t even mentioned by name in Gears 4; she was only alluded to in the game’s ending. I guess, if anything, they could have maybe talked about what they did with her body when she was killed at Azura.
This book was terrible and im convinced that TC doesn't care about the story. The book was an insult compared to the Traviss novels. I wish TC would crumble and someone competent would get control of the Gears IP