That's a good point, but it might be fun to create a new fictional universe and see how it develops as it's own thing rather than a spinoff of something else. But that's just me. 
Perhaps I should outline what I had in mind, however- I was thinking it would be set about a thousand years in the future, where space travel is not uncommon. Practically everyone would have a spaceship, with or without a crew. I tend to prefer utopian futures to dystopian futures as a backdrop but that doesn't mean conflict and battles can't exist- just nothing too inappropriate or depresing, please! 
But I'm absolutely open to interpretation and changes, I really just want a place to roleplay some space adventures!