Hi.
It's really nice to be able to get an answer from the author.

It seems that areas with the higher elevations would be of particular scientific interest.
Why are they high?
Are they older or newer.
Etc.
For purposes of future exploration, much of the focus with on finding areas where the ice crust is shallowest and/or perhaps has recent eruptions of ocean water.

Europa is perhaps one of most interesting bodies in our system, because it seems to have fairly high chance of having life. In addition Europa is more isolated from any possible migration of life from Earth.
Though getting to Europa is somewhat difficult and the possibility of there being life adds further complications to the mission- in order to prevent possible Earth contamination.

Anyhow, welcome to the HabitableZone.