An extension for Jupiter Return Missions is to visit the Galilean Moons of Jupiter.
Ganymede[]
Ganymede is the third stop for spacecraft for a Jupiter Return Mission. A flyby or a landing is opted.
Callisto[]
Callisto is the last stop for spacecraft before even leaving Jupiter's hill sphere. A flyby of a landing is also opted, like other Galilean Moons.
Io[]
Io is the first stop for spacecraft to go home for a Jupiter Return Mission. It might be a flyby, or even a landing, and then escape Io's hill sphere.
Europa[]
Europa is the next stop for spacecraft for a Jupiter Return Mission. It might be a flyby, or even a landing.
Impact[]
Galilean Moon[]
Sometimes, when the return stage has little fuel left, you can have an impact on one of the moons. For example, when your rocket has little fuel left to visit Callisto, instead, you can have an impact on Callisto instead.
Jupiter[]
Crashing to Jupiter is another option to end a Jupiter Return Mission. For example, if you have little fuel left, set an impact trajectory to Jupiter, and just crashing to it.