Just ordered my new 2016 Rebel. It seems you can now get it completely loaded, I was able to get Sunroof, Rambox, etc... I know about a month ago it was noted your couldn't get both, but now it is open.
I ordered Grey, with all options except for the limited slip differential.
Bad news, they said it may be around Christmas before I see it, the factory is slowing down due to issues with recalls, at least that is what the dealer was told.