This is just a wishful thinking for me with Henry Cavill out officially as DC's Superman and also not returning in the Witcher Series as Geralt of Rivia any more, I think that it's the best opportunity for HBO to grab and cast him as Aegon the Conqueror. I feel that he's going to do so well in the role.
He played as The Witcher so well, so I feel he can play as Aegon the Conqueror too if HBO is serious about making the TV show. He has the character to play it well.