Yep... although I'm hoping we get a some more meat for the grinder. As a couple more people in this would be nice.

I'd say yes and no. I did personally like you last opening the whole being addressed to by the headmistress went well with me as it seemed logical she greet the new students. So I think you should have an opening similar to last time but maybe redo it or at the very least work on you last one more and improve on that.