I hadn't thought about it when they first introduced Hilary, but i'm starting to think there's a strong possibility that she's involved. I found it interesting that she seemed to know a lot about Cane and Lily. Considering someone has recently chosen to target Neil and his family, Hilary could be connected to the the story.
Who knows, it may turn out that Neil and Rose(under a different name) could've been involved in the past, and this is their daughter. All I know is it could add some interest to Neil's current SL.