It is no longer possible to show the two characters in the present since they are already both dead. Lyanna Stark died after giving birth to Jon Snow in the Tower of Dorne and she managed to entrust the care of her son to his brother, Ned Stark.
Based on “A Song of Ice and Fire” fantasy novel series, Rhaegar is the eldest son of the Mad King Aerys II and Rhaella Targaryen. He was married to Elia Martell but had an affair with Lyanna Stark, resulting in the birth of their love child, Jon Snow.
During the rebellion against the Mad King, Robert Baratheon killed Rhaegar for allegedly kidnapping Lyanna, whom he considers as the love of his life.
Speculations are now rife that in order to clarify to fans the events leading to the birth of Jon Snow, the backstory of the love affair of Rhaegar Targaryen and Lyanna Stark shall be featured through the visions of Bran Stark in the upcoming seventh season of “Game of Thrones.”
It has been speculated that singer Devin Oliver might take on the role of Rhaegar in Season 7 of “Game of Thrones.”
But the singer took to Instagram recently and said that he may or may not have an appearance in the upcoming seventh season of “Game of Thrones.”