Just done a few sums and for those people on a high-J 744 route (BAH, BLR, DOH, GRU, HKG, IAH, JFK, JNB, LAX, LOS, NRT, PEK, SAO, SFO, SIN, SYD) odds for NF would appear good - you currently have a 32% chance of missing out on the fake walnut panelling. If G-CIVI returns with NF from CWL this goes up to 35%
For the mid-J routes (BKK, BLR, BOS, CAI, CPT, DEL, HKG, IAH, JNB, LAS, LAX, MEX, MIA, NRT, PEK, PHX, SEA, SFO, YVR) it is not so rosy wit only 1 AC fitted making the odds just under 5%. If G-BNLS is fitted with NF, on its current maintenance round, it goes up to almost 10%