User blog comment:FairyRaven/Fairy Tail Chapter 399: Wings of Despair, Review and Commentary/@comment-24546844-20140908172820/@comment-25111584-20140908173716

This is just a theory floating around, not mine:

Many people think LH is a fairy (yeah, yeah, it's mp the Tenrou Jade), so the 'Wings of Hope' might refer to that. Mashima is well-known for these things, today's Acnologia being a perfect example. :D