Yeah, I scored Nara the Fang at a Descent 2nd Ed preview, but as a newcomer to the game - who won't be buying the conversion kit - it was useless to me. However, the 1st Ed player I gave it away to was appreciative.
From the Realms of Terrinoth Early Registration Ends Friday news article (including pics) --
"Four promotional hero figures. Add the highly sought-after figures for Nara the Fang, Tobin Farslayer, Jonas the Kind, and Truthseer Kel to your collection, plus their corresponding character cards for Runebound and Runewars (character cards for Descent: Journeys in the Dark Second Edition will be available in the upcoming Conversion Kit).