But sometime you just gotta say fuck it, and use some swears.
I'm leary of Star Wars going "dark" as often times filmmakers mistake over seriousness for darkness. Star Wars has gone to dark places and I think it's fine if they continue to, but the point, as always is to tell an entertaining story. If the darkness gets in the way of that, it's a problem.
Back to the sex and swearing, if they ever make a Han Solo or bounty hunter movie (which they likely will) I'll be annoyed if neither of those things are present. They don't have to go for an R rating, but keeping it kid friendly would just ring false.