I don't know if it came from elsewhere, or if it popped into my mind on it's own, but I always though a WW1 era Predator would be very interesting. Trench warfare. 2 opposing sides have to come together to take out an otherworldly foe. Given that won't happen however, outer space is the way to go. But further into outer space than Predators went. I want my alien landscapes to look more alien. Unless i'm watching Stargate, in which case I wholly expect it to look like Vancouver & nearby areas.