User blog comment:IamJakuhoRaikoben/Chapter 251: The Right To Love, Review./@comment-1454981-20110918165937/@comment-79.49.191.91-20110918175334

If the hand of the vision was Makarov's after the fight with Hades we should have seen an image with Makarov's whole body or just a zoom on his hand, but we didn't so I think we're going to see that later. Natsu's face wasn't the face he did when he fealt fear against Gildarts Zancrow or Hades, it's more like an expression of desperation or sense of lost (after someone's death). Cana never cried since they arrived in the island, so I'm afraid your supposition is right..