It seems that The CW is mucking with it's Friday schedule again.  This Friday, November 9th, Nikita is airing at it's normal 9pm timeslot and then taking a two week break. America's Next Top Model airs it's 2 hour season finale on November 16th and November 23rd is Thanksgiving weekend.  When Nikita comes back on November 30th, it'll return at 8pm and Arrow repeats will air at 9pm.  This schedule will continue until January 18th.