After reading about solar eclipses, I would like to be able to set the time and place in the editor and have the eclipse occur during gameplay. Having the sun blocked out for a few minutes or a lunar eclipse occur could easily add some unique gameplay that has never been done before.
Advanced features would be under the "Advanced Intel" tab in the editor and would feature user decided solar and lunar eclipses that would allow the user to edit the time, duration and wether it is a partial or total eclipse.