John,
Yes, I checked with DCA on Fri. and talked to the New Guy down there. His name is Alan Chech ( pronounced check) His take is that a new finished basement counts as "New building element" and therefore AFCI is required. Our Rehab does follow 2008 NEC and new work follows 2011. Having said that, I believe that even if you replace a receptacle, according to the 2008 NEC, you were suppose to change the circuit to AFCI. However NJ removed that requirement from the NEC under our UCC rules.