What if the changes were permanent?

How messed up would the Ninjago story be if the following changes were permanent? Zane dies permanently in his fight against the Golden Master. Cole remains a ghost permanently. Nya merges with the ocean and never regains her memory. Jay stays on Ra's team and continues to follow his orders. How would you rearrange the story's events to make these changes permanent? What aspects of the plot would worsen or improve with these changes? Or would the story simply fall apart because of these...