Game Of Thrones Season 6: 9 Book Storylines That Could Still Be Used

What Is It? While travelling to Volantis, Tyrion boards a ship called the Shy Maid. There, he meets a man named Griff, and his son, Young Griff. On the journey, Tyrion discovers that Young Griff is actually Prince Aegon Targaryen, the son of Rhaegar believed by everyone to have been killed as a baby by the Mountain. Griff, meanwhile, is actually Jon Connington, a good friend of Rhaegar, former Hand to the Mad King, and again a person long-thought dead. Rather than heading to meet Daenerys, they instead decide to head for Westeros to take it for themselves, something not helped by the fact Connington has secretly contracted greyscale.  

Odds Of It Happening? This probably depends on what George R.R. Martin has planned for the character. Although the show is diverging further away from the books, they're still going to arrive at the same destination, and Martin will surely have let them know whether Aegon is going to be a major player in things through to the end. If that's the case, then he could be worked in somehow, although it'd take a very different introduction to the books given we're long past that point (and Jorah has even filled in for Connington by contracting greyscale). 

If, as many suspect, he is a fake, and a hastily written, ill-thought out plot point that will end up going nowhere, then it'd be better to leave him out of the show, and that's probably what they would do. 

What book storylines do you still hope to see? Share your thoughts in the comments.