What If Joffrey NEVER Died? | Game of Thrones

We go through how the events of Game of Thrones would change if the Joffrey Baratheon NEVER died. What would Tyrion Lannister's next move be, would he still be on trial? How badly would Cersei Lannister want her brother to be punished? Does Tywin Lannister still stay as Hand of the King with growing Tyrell influence in court? What is Jaime Lannister's arc now?