Saturn aerobraking hazard - roll 1d6, if you roll an integer your vessel is destroyed.
There used to be a question what to do with Cassini prior to the decission of the Grand Finale. There were three options: 1) making plunge into Saturn after Juno-like orbits, 2) visiting Iapetus at the end and be lost in deep space, 3) heading for a Uranus flyby.
The third was the best option in my opinion. It has not been chosen because Uranus Orbiter was then high in the ranks for the next flagship mission. Unfortunately (for me) instead of Uranus Orbiter they took Europa Clipper.
So, Cassini would have made it different.