I think were more likely getting post's and being active if we keep the theme star wars which we know already all of us like. Besides, switching to a new theme would mean getting rid of all of our old characters we love so much.
I think out problem is letting ourselves get to powerful and such.
Examples:
-Duvnar is just storming through Commandos
-Jon is leading an entire planet of settlers
-Corran controls an entire fleet
Really everyone has gone to get to much power except for Caredetru. But making rules and limitions on power will make us little different from Combine, and we left to make our own sites so we would not be so constricted.
But at first we really left because the Mods did not allow us fighting dark Jedi.
My idea is, everyone make their characters small time, make sure you don't go over board in power try to focus less on detailed post.
Like back on Combine we had fun posting an hour straight with one line post like "I'm fine. How are you?" and such. Now were not only obsessed with controling more people and power but we also work to hard on the details of our post.
Granted we all got a lot better at post since then and it feels right to add some detail now but let's not focus so much on detail or just posting when the time is right. Just post, have your character do something and see where it goes.