Will my Schlotzsky's stock ever be worth anything?

I have owned 70 shares of Schlotzsky's stock for the last few years. I coincidentally sold most of my shares before it went bankrupt a few years ago. They are usually worth about $0.001 (less than a penny!) Today is was at zero. Will Schlotzsky's ever rebound and if it does, will I ever be able to sell my stock? Ticker symbol is BUNZQ.PK