If Lisa Hall is an emerging figure in Fantastic Fiction, her significance could lie in her potential to contribute to the growth and evolution of the genre. She could be bringing fresh ideas, whether as a new voice in writing, or as someone involved in the behind - the - scenes work like editorial or marketing. Maybe she's known for her work in promoting diversity in Fantastic Fiction, ensuring that different voices and stories are represented. However, until we know more about what she actually does in relation to Fantastic Fiction, we can only speculate on her significance.
As I said before, without more details, it's difficult to say. If she's an author, her significance could be in the stories she tells, the unique perspectives she brings. If she's a reader, she might be significant for her reviews or her influence on other readers within the Fantastic Fiction community.