Hahaha if only. This is going to be epic. I am confident they are going to leave us hanging with new questions and concerns but they will give a few answers that have lingered through the season. I have confidence in the creators that this show will not lose its way if it continues. They are telling a very elaborate story. Each episode feels like a really good book you are reading and when it ends you miss the characters. They are trying to visually tell a story in 10 weeks, and unfortunately we can't jump to the last page like a good book. We have to wait (uuughs) and in a world were everything today is immediate gratification its painful to hang in and just enjoy the ride. So it only stands to reason we'll be left "bereft" lol as you have mentioned.
I am anxious to find out what happens with Sarah and Rachel, IMO their battle is the arc of this season. I feel like Rachel may go down but then I hear there's a major mind Frak coming so perhaps she's a good guy? I find Marian's presence this season most interesting and her fascination with Sarah. I hope we get some answers there. Either way..answers or not...this show is a good hour of entertainment every week and I am sad to see it coming to an end this season. I will miss the sestras and enjoyed their development this season, especially Helena.