I'll list some that should be available as I think of them:
Lonerider Addie's Revenge
Big Boss - High Roller, Night Knight, Deuces Wild, Monkey Biz-ness (a bit sweet this year), Warhawk, The Centaur (saison with Mosaic dry hop)
Foothills - Jade, Seeing Double
Pisgah - Valdez
NoDa - Hop Drop & Roll
Olde Hickory - Death By Hops
In looking at the list above I seem to have included several IPA variants.
All the Oscar Blues beers are brewed in Brevard, NC and to me are fresher and better than their Colorado counterparts. Gubna was revamped this year and should be out soon, Deviant Dales is darn tasty from Brevard.
Send your peeps to Sam's Quick Shop in Durham and/or Tasty Beverage in Raleigh. If they go close to the time of your visit they could grab some growlers. They guys at either could give them some guidance, especially if you let them know what you are after.