He is immune to bad dialogues.
He doesn't care about small details, he is all after the endgame.
He tames dragons better than any Targaryen, in way less time too.
Do you think in the next season we will explore more of his character (who he is, what he wants), or will he be the weird alien slient enemy until the end?
I'm afraid of character destruction but it would be awesome if he spoke and put all the living in their place, something like "I am saving the world from destruction, I am saving the world from you. To destroy I was made, but to save I will".
It would be interesting if he had really good points on his side other than "Eliminate Mankind, execute order 999".