You know, I didn't like the character at the start of the episode, but by the end, I was hooked. I was really hoping she would make some sort of appearance (even at the End of Time), but she never did.
Also, seeing as how Moffat doesn't seem to want to bring back RTD character's (Captain Jack, other companions, etc), it seems doubtable. And please, nobody bring up that cheap holographic show they did in Let's kill Hitler.