And am still not really any wiser
However she did say that the different elements were all separate and that they wouldn't all necessarily be withdrawn if you earn over 40k.
She said that you would most certainly receieve less but it could be a case based on your individual circumstances that you still receieved something. So if you were in receipt of some childcare, disability etc on top of the family element and had more than one child then it would be likely you would get something - it wasn't as clear as cutting off everything for a joint income of 40,000. It will just be reduced more heavily as the threshold has lowered.
Unfortunately she said they wouldn't know calculations for next year until April though