Extremely cool! Here's a suggestion...
When Cassini finally is ready to be cancelled (hopefully many years hence), we'll likely send it diving into Saturn just as we sent Galileo into Jupiter. What a perfect spot that vortex is to dive into! Of course there will be likely be fuel constraints that may nix the idea, as well as transmission constraints on the last photos as Cassini dives into the vortex. Would be great if those and other technical problems could be overcome.