Young Griff's fate has been clearly spelled in the Cyvasse Game
GRRM has a way of foretelling someone's fate. He foretold the death of Robb in the vision at the House of the Undying. And I believe that Tyrion's cyvasse has already spelled in black and white what Young Griff's fate will be.
Aegon was trying to go to Meereen to get Dany and her dragons in order to sail to Westeros but just like in the game, Tyrion dissuades him from such approach claiming that it would make him look like a bitch. He foolishly listens to the advice and preemptively sails to Westeros. Now unlike the game I think he will find major success at first but somehow will get caught in a quagmire that will require Dragons to help but like in the game, the dragons will be too far away to do anything.
Some have theorised a second dance of the Dragons but I'm of the opinion that it won't happen. His fate is clearly spelled in the game and it will happen as such.