So that leads me to believe that if Emma did choose to ignore her ‘debt’ to Gold, then it would throw things off balance & perhaps lead to dire repercussions, not only for Emma but for those she cares about. But as for what he’ll ask for, I truly believe that after the events of ‘Hat Trick’, he’ll ask her to side with him, and use her magic ( that she may or may not have – I think she has magic ) to help him meet his goals; whatever they may be.