Joffrey is being a merciless ruler to the people and Sansa while Tywin wants Tyrion to be the king's hand he trust him after all. Jon wants to go to be with his brother and kill King Joffrey but his friends stop him and bring him back. Arya wil go to the Night's Watch as an orphan with his brother. That would be awesome to watch in the next season but that will by until Jon return from his expedition to outer walls if he returns. The price to pay for three dragons was Rhaego and Khal. A new potential ruler has been born.