Closed?! Nooo!
Seriously, a moderate dose of grittiness would have potenial to help Funcom a great deal. Why?
Because SWG would never, never go there.
If it was suggested, I'm certain that George Lucas would never even consider it. His game will be just as all-ages-friendly as every one of the films (even though Empire... by far, the best film in the series, imo... was almost borderline-gritty).
This may cause a stir among certain pro-censorship groups, but that could potentially be good for business. AO could use more publicity.