Flare is a good card. I've literally been wanting them to reprint Cinderella, ever since the base set came out. Cinderella was one of my favorite ice from Original Netrunner.
NBN now has two strong in faction expensive ice. In addition to strong ice in Popup and Data Raven. Rich NBN could be very scary NBN!
Flare crushes a Dinosaurus so hard. Really, anytime this hits its terrible for the runner. Thats a must avoid trace. NBN makes it a trace 8 (original NBN at least), so basically its a forced big money loss for the runner.
Chum in front of it is strong. Chum is just great in NBN, since its awesome in front of Data Raven as well, And hunter, which is more playable in NBN.
Of course, the new NBN power will probably be totally different, but a trace 6 is still big. It really makes me want to have Foxfire and nuke any link cards they play, and then make Flare this massive money drain.