Well when they changed the uniform, she'd have gotten a change of outfit as well
I really liked T'Rul. She would have been another good source of conflict for the rest of the crew, even if she'd been like Eddington and had a few appearances in the follow seasons, maybe given her a little arc. She would have helped developed the Romulans more, rather than just the sneaky, stealthy foes of the Federation.
I could just imagine that she and Quark would have been good in an episode together.