This has been a theory of mine and I don't know how much of it actually carries any weight; probably very little, but nonetheless I find the theory intriguing. So I came into the game around wave VIII with Imps being the dominant force arguably followed by scum and the missile boats. From my memory the rebels always got a bit of pity being clearly the weakest force. Now clearly things have changed. With Scum and rebels alike being fairly dominant with the Imps bringing up the tail end of things. Now there isn't any set rotation of anything in this game per say...but what if a strategy of FFG was to have a hidden rotation of the Factions that be by bringing them to power one after another. This would allow each faction its time in the lime-light and exposing players to every faction, cause of course who doesn't wanna play the hot stuff? If nothing more than an interesting take on our game, I think this idea of power rotation is pretty cool. One downside to the idea however is the need for constant power creep over the previous bar. Many of us are experiencing this to our dismay, but it does keep the game unpredictable in a sense.
so yeah ill spare anyone my late-night brainstorming rant. Just an interesting thought.