we know that there is going to a second gas planet, but i think it would be way to awesome to have a binary sistem of 2 gas planets with like 7 moons, also it would be perfect to test the [barycenters](http://forum.kerbalspaceprogram.com/threads/39620-Barycenters-and-non-spherical-Volumes-of-Influence-(an-idea-for-binary-planets-stars))