Thanks Andrea for posting this news.
My first thought when I heard she was going to be connected to the Colleen story was something to do with the professor. I've watched Y&R and B&B for 15 years, so I've seen Amber on B&B from day 1, until she left. The last time she was mentioned, Ridge had seen her in Italy and Amber called his family in LA to get him away from crazy-Morgan. So I think it's a definite possibility that she could be connected to the whole reliquary search or the professor in some way.
I always liked Amber on B&B, and Adrienne Frantz is a great actress, IMO. Should be a great addition to the show and will definitely make things even more interesting.