Unfortunately, I do not know how much attention Katja will pay Rose since she is on the quieter side and Katja is very, well, not quiet. But I think if they did interact, they'd get along well. At the very least she'd admire Rose's intellect.
Awww that would be cute if she liked her. Katja would like how assertive Tori is and she probably wouldn't care that she has her own little black market. I think they could definitely be friendly.