Darcy! At first I was thinking I wouldn't mind if we didn't get to see his face yet, because it is what Darcy says and does which is important, not what he looks like. Then I realised that if we don't see his face - and the emotion in his face - it just reinforces Lizzie's portrayal of him as a robot. And as much as I love robot!Darcy, we need to see his face so we can see him as a human being.
And so he can act properly. I don't think Lizzie would have been so compelling in that latest vid if we hadn't seen her face.

I wonder if Caroline's motive in keeping Bing away from Jane is simply in wanting to keep Darcy away from Lizzie (and hence keep him for herself)?