I wish they'd bring it back - it's very good oil, and all the UOA's I've done on it have been great. IMHO, a quality recycled oil like NextGen will always be as good as, if not better, than oil made from virgin crude.
The trick is, they have to have good marketing so people understand what's in the bottle. Heck, if Mobil can successfully market 'Annual Protection' oil, then Valvoline should be able to run a successful marketing campaign for something like NextGen.
For what it's worth, I bought up as much NextGen as I could a couple years back when PepBoys, etc.. were clearing it out. I think I must have bought something like 20 quarts, mixed between their conventional, MaxLife, and synthetic variants.. and I think I still have 6 quarts left. My Fusion seems to run well on it, and I wish I had more.