Leaked Files From The HBO Hack Suggest Rhaegar Targaryen Will Appear on Game of Thrones This Season

The Dragon could well appear in flashback form before the end of series 7.

from gizmodo http://www.gizmodo.co.uk/2017/08/leaked-files-from-the-hbo-hack-suggest-rhaegar-targaryen-will-appear-on-game-of-thrones-this-season/