There is only 1 'face' character dining location open (Cinderella's Royal Table). It is a far cry from what it used to be, Cinderella waves from very far away. Trattoria al Forno doesn't have the space to keep any princes or princesses far enough away from guests who are unmasked while eating so it is unlikely it will resume the characters at breakfast anytime soon. Their union has specific rules about how close guests can be to unmasked union members.