Set on an alien planet wouldn't be bad. That was the other alternative for DS9 - er, Plan 9 from outer space, or whatever, you know between two warring powers and factions again. I guess that is the same thing. It really has to have a new original crazy metaphysical off the wall premise, like Space 1999 had even. Nobody cared how unlikely that really was in the long run. Like if a race of unseen aliens are really living on Earth or another planet and they start attacking us and it turns out that we are the invaders. some kind of twist turned on it's head.