I'd suppose that if they're all dried and cured, keep them in the curing jars...it can only help. Mine were in curing jars for since December, and still good!
I just opened up a Turkey bag from Thanksgiving that had a QP of some Purple Wreck. I kept a 69% Humidipak in there. It was fine. Last week a buddy of mine opened up a P of Super Silver Haze that was in a turkey bag from a Christmas harvest. It was killer. I've never stored over 90 days or so. I bet with a good climate, dark room, turkey bag and a humidipak I could get 6mo out of herb no problem...maybe longer. I'll never know because I'm always smoking it