Courtney is supposed to be Brankica's back up, for when their passing collapses; she could even be used as libero in Champions League. Robinson is staying too.
I heard Fefa's agent had a talk with Eczacibasi (but they want Ogbogu) and THY earlier, but Fener makes sense too, because there's a romour about them getting 1 more foreign player if Vargas gets the turkish citizenship.
I don't know if replacement will be Courtney, but Robinson is leaving Fener for sure, no question about it. Most likely destination is China.