The realtime simulation of the Cassini mission has been updated to show the upcoming close encounters with Rhea and Helene (March 2 & 3). Unfortunately, the solar system simulator does not have Helene in it so I cannot link in the usual simulated views.
The Voyager 2 realtime simulation now shows the mission tweets. Hope to expand that to more mission and other pages on the site.
EDIT: This feature is now also available for Herschel, Planck, Kepler, MSL (Curiosity), MESSENGER, Spirit, Opportunity, New Horizons and Cassini
Whilst upgrading the background processes to allow for the upcoming Cassini multiple flybys, I have also fixed some errors that occurred in missions where there is no distance flown information available.