If you have the leaves and/or (at least) the little axillary buds (little growth right on top of where te leaf connects to the stem it's on), you should get 2 cola's. Maybe a small plant because it is an auto and that is a pretty severe topping, but it should still grow. If you didnt have any growth at the first node that wasn't damaged by this incident, it will probably just die (becuase it would be just a stick...).