I would like to see black shorts and socks coupled with the blood and bandages for the away strip. It's different yet traditional. Red, white and black is a great combination.
And despite its use by the Panthers and Warriors, black remains an unmistakably neutral colour in my view.
Willow, I think I've also seen pictures of Saints teams from the 60s or 70s wearing black shorts. Possibly something to do playing teams with white shorts and needing a clear difference for the benefit of black and white TV.