The creators decided to end it, HBO did not cancel it. That is the mystery to me. We will never know why.
Where they are going with the surrogate story? There is not enough time left in this season for her to finish a pregnancy.
This show has always been hard to predict but it does not stop me trying.
Georges daughter agreeing to take him for a shock treatment, behind Ruths back, can come to NO good. It may send him to an institution to get him out of the plot but why the secret, there is much more to it.
Claire and Billy will part ways but with MUCH drama and your theory, FireStorm sounds plausable. It could be the straw for Nate to walk away from that crazy family into the soft sweetness of George's daugher. I also agree with you on last season. It was too dark; there was no balance whatsoever.