I don't think there's really much of a role for her in that because it would be just her hunting Inquisitors, and honestly I think she'd want to get as far away from that as possible. I don't think she has it in her to keep fighting, she just wants peace.
To continue with her redemption I'd welcome instead of her killing Inquisitors she de-program them back to the light.
"Dedra Meero is not just a woman in a men’s world, but a fascist in a world of fascists.” - Denise Gough