I may consider that for some of the planets in Bretonia (not sprague, however, as we're actively getting ready to colonize the place)
The planet orbits haven't been shown. So far, the only rings there are nebulae or asteroid fields, and those objects are collections of many smaller objects on simmilar orbits, which doesn't really lend itself to much elipticalness I don't think.
Ross planetoid, for example, deserves a weird orbit...(cause planetoids are weird)
Many gates can have weird orbits, being as they are anchors to things not particularly in line with the reality of system gravity.
I would like to see something like a moon in a system occasionally...Maybe drop some into orbits of the Gas giants in Kusari..eh. May even go out on a limb and add things to systems because I can..but probably not